Species Clade Sacci Buoyant Down Drop

Transcription

1 Table S1. Character data used in this study. All characters except seed cone are binary, with 1 indicating presence and 0 absence. For seed cone, 0 indicates pendulous cones, 1 indicates cones borne horizontally or laterally, 2 indicates erect cones, and 3 indicates no consistent cone. Taxa known from detailed studies or observations are indicated in bold with a footnote, where the number corresponds to the reference given below. Taxa in red are missing information on key characters and were not used in the analysis. Species Clade Sacci Buoyant Down Drop Seed Cone Orientation Agathis atropurpurea Araucariaceae Agathis australis 2 Araucariaceae Agathis borneensis Araucariaceae Agathis corbassonii Araucariaceae Agathis dammara Araucariaceae Agathis lanceolata Araucariaceae Agathis macrophylla Araucariaceae Agathis microstachya Araucariaceae Agathis montana Araucariaceae Agathis moorei Araucariaceae Agathis ovata Araucariaceae Agathis robusta Araucariaceae Agathis silbae Araucariaceae Araucaria angustifolia 3 Araucariaceae Araucaria araucana 1 Araucariaceae Araucaria bernieri Araucariaceae Araucaria bidwillii 3 Araucariaceae Araucaria biramulata Araucariaceae Araucaria columnaris Araucariaceae Araucaria cunninghamii 3 Araucariaceae Araucaria heterophylla 3 Araucariaceae Araucaria humboldtensis Araucariaceae Araucaria hunsteinii Araucariaceae Araucaria laubenfelsii 3 Araucariaceae Araucaria luxurians Araucariaceae Araucaria montana Araucariaceae Araucaria muelleri Araucariaceae Araucaria nemorosa Araucariaceae Araucaria rulei Araucariaceae Araucaria schmidii Araucariaceae Araucaria scopulorum Araucariaceae Araucaria subulata Araucariaceae Wollemia nobilis 1 Araucariaceae

2 Actinostrobus acuminatus Cupressaceae Actinostrobus arenarius Cupressaceae Actinostrobus pyramidalis 1 Cupressaceae Athrotaxis cupressoides 4 Cupressaceae Athrotaxis laxifolia 4 Cupressaceae Athrotaxis selaginoides 5 Cupressaceae Austrocedrus chilensis 1 Cupressaceae Callitris endlicheri 4 Cupressaceae Callitris macleayana Cupressaceae Callitris preissii 5 Cupressaceae Callitris rhomboidea Cupressaceae Callitropsis nootkatensis 4 Cupressaceae Calocedrus decurrens 4 Cupressaceae Calocedrus formosana 4 Cupressaceae Calocedrus macrolepis Cupressaceae Chamaecyparis formosensis Cupressaceae Chamaecyparis lawsoniana 4 Cupressaceae Chamaecyparis obtusa 4 Cupressaceae Chamaecyparis pisifera 4 Cupressaceae Chamaecyparis thyoides 4 Cupressaceae Cryptomeria japonica 4 Cupressaceae Cunninghamia konishii 4 Cupressaceae Cunninghamia lanceolata 4 Cupressaceae Cupressus cashmeriana Cupressaceae Cupressus chengiana Cupressaceae Cupressus duclouxiana 4 Cupressaceae Cupressus dupreziana Cupressaceae Cupressus funebris 5 Cupressaceae Cupressus sempervirens 4 Cupressaceae Cupressus torulosa Cupressaceae Diselma archeri 5 Cupressaceae Fitzroya cupressoides 4 Cupressaceae Fokienia hodginsii 4 Cupressaceae Glyptostrobus pensilis 4 Cupressaceae Hesperocyparis arizonica 4 Cupressaceae Hesperocyparis bakeri 4 Cupressaceae Hesperocyparis benthamii Cupressaceae Hesperocyparis forbesii Cupressaceae Hesperocyparis glabra Cupressaceae Hesperocyparis goveniana 5 Cupressaceae Hesperocyparis guadalupensis Cupressaceae

3 Hesperocyparis lusitanica Cupressaceae Hesperocyparis macnabiana Cupressaceae Hesperocyparis macrocarpa 4 Cupressaceae Hesperocyparis montana Cupressaceae Hesperocyparis nevadensis Cupressaceae Hesperocyparis sargentii Cupressaceae Hesperocyparis stephensonii 5 Cupressaceae Juniperus angosturana Cupressaceae Juniperus ashei Cupressaceae Juniperus barbadensis Cupressaceae Juniperus bermudiana Cupressaceae Juniperus blancoi Cupressaceae Juniperus californica Cupressaceae Juniperus chinensis 5 Cupressaceae Juniperus coahuilensis Cupressaceae Juniperus comitana Cupressaceae Juniperus communis 4 Cupressaceae Juniperus convallium Cupressaceae Juniperus deppeana Cupressaceae Juniperus drupacea Cupressaceae Juniperus durangensis Cupressaceae Juniperus excelsa 5 Cupressaceae Juniperus flaccida Cupressaceae Juniperus formosana Cupressaceae Juniperus gamboana Cupressaceae Juniperus gracilior Cupressaceae Juniperus horizontalis Cupressaceae Juniperus indica Cupressaceae Juniperus komarovii Cupressaceae Juniperus microsperma Cupressaceae Juniperus monosperma Cupressaceae Juniperus monticola Cupressaceae Juniperus occidentalis Cupressaceae Juniperus osteosperma Cupressaceae Juniperus oxycedrus 4 Cupressaceae Juniperus phoenicea 5 Cupressaceae Juniperus pinchotii Cupressaceae Juniperus pingii Cupressaceae Juniperus procera Cupressaceae Juniperus procumbens Cupressaceae Juniperus przewalskii Cupressaceae

4 Juniperus pseudosabina Cupressaceae Juniperus recurva Cupressaceae Juniperus rigida 4 Cupressaceae Juniperus sabina 5 Cupressaceae Juniperus saltillensis Cupressaceae Juniperus saltuaria Cupressaceae Juniperus saxicola Cupressaceae Juniperus scopulorum Cupressaceae Juniperus semiglobosa Cupressaceae Juniperus squamata 4 Cupressaceae Juniperus taxifolia Cupressaceae Juniperus thurifera Cupressaceae Juniperus tibetica Cupressaceae Juniperus virginiana 4 Cupressaceae Libocedrus austrocaledonica Cupressaceae Libocedrus bidwillii Cupressaceae Libocedrus plumosa 6 Cupressaceae Libocedrus yateensis Cupressaceae Metasequoia glyptostroboides 4 Cupressaceae Microbiota decussata 5 Cupressaceae Neocallitropsis pancheri 1 Cupressaceae Papuacedrus papuana 1 Cupressaceae Pilgerodendron uviferum 4 Cupressaceae Platycladus orientalis 4 Cupressaceae Sequoia sempervirens 4 Cupressaceae Sequoiadendron giganteum 4 Cupressaceae Taiwania cryptomerioides 1 Cupressaceae Taxodium distichum 4 Cupressaceae Taxodium mucronatum Cupressaceae Tetraclinis articulata 4 Cupressaceae Thuja koraiensis 4 Cupressaceae Thuja occidentalis 4 Cupressaceae Thuja plicata 4 Cupressaceae Thuja standishii 4 Cupressaceae Thuja sutchuensis Cupressaceae Thujopsis dolabrata 4 Cupressaceae Widdringtonia cedarbergensis Cupressaceae Widdringtonia nodiflora Cupressaceae Widdringtonia schwarzii 4 Cupressaceae Xanthocyparis vietnamensis 1 Cupressaceae Abies alba 7 Pinaceae

5 Abies amabilis Pinaceae Abies bracteata Pinaceae Abies concolor Pinaceae Abies fabri Pinaceae Abies fargesii Pinaceae Abies firma Pinaceae Abies fraseri Pinaceae Abies grandis 7 Pinaceae Abies holophylla Pinaceae Abies homolepis Pinaceae Abies kawakamii Pinaceae Abies koreana Pinaceae Abies lasiocarpa 8 Pinaceae Abies magnifica Pinaceae Abies mariesii Pinaceae Abies nebrodensis Pinaceae Abies nephrolepis Pinaceae Abies nordmanniana Pinaceae Abies numidica Pinaceae Abies pinsapo Pinaceae Abies procera Pinaceae Abies sachalinensis Pinaceae Abies sibirica Pinaceae Abies veitchii Pinaceae Cathaya argyrophylla Pinaceae 1 1 1? 2 Cedrus atlantica Pinaceae Cedrus deodara 9 Pinaceae Cedrus libani Pinaceae Keteleeria davidiana Pinaceae 1 1 1? 2 Keteleeria evelyniana Pinaceae 1 1 1? 2 Larix decidua 1 Pinaceae Larix gmelinii 1 Pinaceae Larix griffithiana Pinaceae Larix kaempferi 1 Pinaceae Larix laricina Pinaceae Larix occidentalis Pinaceae Larix potaninii Pinaceae Nothotsuga longibracteata Pinaceae????? Picea abies 1 Pinaceae Picea alcoquiana Pinaceae Picea asperata Pinaceae

6 Picea brachytyla Pinaceae Picea breweriana Pinaceae Picea chihuahuana Pinaceae Picea crassifolia Pinaceae Picea engelmannii 10 Pinaceae Picea farreri Pinaceae Picea glauca Pinaceae Picea glehnii Pinaceae Picea jezoensis Pinaceae Picea koraiensis Pinaceae Picea koyamae Pinaceae Picea likiangensis Pinaceae Picea mariana Pinaceae Picea maximowiczii Pinaceae Picea meyeri Pinaceae Picea morrisonicola Pinaceae Picea obovata Pinaceae Picea omorika Pinaceae Picea orientalis 11 Pinaceae Picea pungens Pinaceae Picea purpurea Pinaceae Picea retroflexa Pinaceae Picea rubens Pinaceae Picea schrenkiana Pinaceae Picea sitchensis 12 Pinaceae Picea smithiana Pinaceae Picea spinulosa Pinaceae Picea torano Pinaceae Picea wilsonii Pinaceae Pinus albicaulis Pinaceae Pinus aristata Pinaceae Pinus arizonica Pinaceae Pinus armandii Pinaceae Pinus attenuata Pinaceae Pinus ayacahuite Pinaceae Pinus balfouriana Pinaceae Pinus bhutanica Pinaceae Pinus brutia Pinaceae Pinus bungeana Pinaceae Pinus canariensis Pinaceae Pinus caribaea v. bahamensis Pinaceae

7 Pinus caribaea v. caribaea Pinaceae Pinus caribaea v. hondurensis Pinaceae Pinus cembroides Pinaceae Pinus chiapensis Pinaceae Pinus clausa Pinaceae Pinus contorta 13 Pinaceae Pinus coulteri Pinaceae Pinus cubensis Pinaceae Pinus culminicola Pinaceae Pinus dalatensis Pinaceae Pinus densata Pinaceae Pinus densiflora Pinaceae Pinus devoniana Pinaceae Pinus douglasiana Pinaceae Pinus durangensis Pinaceae Pinus echinata Pinaceae Pinus edulis Pinaceae Pinus elliottii Pinaceae Pinus engelmannii Pinaceae Pinus fenzeliana Pinaceae Pinus flexilis Pinaceae Pinus gerardiana Pinaceae Pinus glabra Pinaceae Pinus greggii Pinaceae Pinus halepensis Pinaceae Pinus hartwegii Pinaceae Pinus heldreichii Pinaceae Pinus herrerae Pinaceae Pinus hwangshanensis Pinaceae Pinus jeffreyi Pinaceae Pinus johannis Pinaceae Pinus kesiya Pinaceae Pinus koraiensis Pinaceae Pinus krempfii Pinaceae Pinus lambertiana Pinaceae Pinus lawsonii Pinaceae Pinus leiophylla Pinaceae Pinus longaeva Pinaceae Pinus luchuensis Pinaceae Pinus lumholtzii Pinaceae

8 Pinus maximartinezii Pinaceae Pinus merkusii Pinaceae Pinus monophylla Pinaceae Pinus montezumae Pinaceae Pinus monticola Pinaceae Pinus morrisonicola Pinaceae Pinus mugo 14 Pinaceae Pinus muricata Pinaceae Pinus nelsonii Pinaceae Pinus nigra 14 Pinaceae Pinus occidentalis Pinaceae Pinus oocarpa Pinaceae Pinus palustris Pinaceae Pinus parviflora Pinaceae Pinus patula Pinaceae Pinus peuce Pinaceae Pinus pinaster Pinaceae Pinus pinceana Pinaceae Pinus pinea Pinaceae Pinus ponderosa Pinaceae Pinus praetermissa Pinaceae Pinus pringlei Pinaceae Pinus pseudostrobus Pinaceae Pinus pumila Pinaceae Pinus pungens Pinaceae Pinus quadrifolia Pinaceae Pinus radiata Pinaceae Pinus remota Pinaceae Pinus resinosa Pinaceae Pinus rigida Pinaceae Pinus roxburghii Pinaceae Pinus rzedowskii Pinaceae Pinus sabiniana Pinaceae Pinus serotina Pinaceae Pinus sibirica Pinaceae Pinus squamata Pinaceae Pinus strobiformis Pinaceae Pinus strobus Pinaceae Pinus sylvestris Pinaceae Pinus tabuliformis Pinaceae Pinus taeda Pinaceae

9 Pinus taiwanensis Pinaceae Pinus teocote Pinaceae Pinus torreyana Pinaceae Pinus tropicalis Pinaceae Pinus uncinata Pinaceae Pinus virginiana Pinaceae Pinus wallichiana Pinaceae Pinus yunnanensis Pinaceae Pseudolarix amabilis Pinaceae 1 1 1? 2 Pseudotsuga japonica Pinaceae Pseudotsuga macrocarpa Pinaceae Pseudotsuga menziesii 15 Pinaceae Pseudotsuga sinensis Pinaceae Tsuga canadensis 1 Pinaceae Tsuga caroliniana Pinaceae Tsuga chinensis Pinaceae Tsuga diversifolia Pinaceae Tsuga dumosa Pinaceae Tsuga forrestii Pinaceae Tsuga heterophylla 16 Pinaceae Tsuga mertensiana 17 Pinaceae Tsuga sieboldii Pinaceae Acmopyle pancheri 18 Podocarpaceae Acmopyle sahniana Podocarpaceae Afrocarpus falcatus 19 Podocarpaceae Afrocarpus gracilior 19 Podocarpaceae Afrocarpus mannii 19 Podocarpaceae Afrocarpus usambarensis 19 Podocarpaceae Dacrycarpus cinctus Podocarpaceae Dacrycarpus compactus Podocarpaceae Dacrycarpus dacrydioides Podocarpaceae Dacrycarpus imbricatus Podocarpaceae Dacrycarpus kinabaluensis Podocarpaceae Dacrycarpus veillardii Podocarpaceae Dacrydium araucarioides 1 Podocarpaceae Dacrydium balansae Podocarpaceae 1 1 1? 2 Dacrydium beccarii Podocarpaceae 1 1 1? 2 Dacrydium cupressinum Podocarpaceae 1 1 1? 2 Dacrydium elatum Podocarpaceae 1 1 1? 2 Dacrydium guillauminii 1 Podocarpaceae Dacrydium lycopodioides 1 Podocarpaceae

10 Dacrydium magnum Podocarpaceae 1 1 1? 2 Dacrydium nausoriense Podocarpaceae 1 1 1? 2 Dacrydium nidulum Podocarpaceae 1 1 1? 2 Dacrydium xanthandrum Podocarpaceae 1 1 1? 2 Falcatifolium falciforme 19 Podocarpaceae Falcatifolium taxoides Podocarpaceae Halocarpus bidwillii Podocarpaceae Halocarpus biformis Podocarpaceae Halocarpus kirkii 20 Podocarpaceae Lagarostrobos franklinii 21,22 Podocarpaceae Lepidothamnus fonkii Podocarpaceae Lepidothamnus laxifolius 20 Podocarpaceae Manoao colensoi 20 Podocarpaceae Microcachrys tetragona 20 Podocarpaceae Nageia fleuryi Podocarpaceae 1 1 1? 2 Nageia formosensis Podocarpaceae 1 1 1? 2 Nageia nagi Podocarpaceae 1 1 1? 2 Nageia wallichiana Podocarpaceae 1 1 1? 2 Parasitaxus usta 1 Podocarpaceae Pherosphaera fitzgeraldii 22 Podocarpaceae Pherosphaera hookeriana Podocarpaceae Phyllocladus alpinus Podocarpaceae Phyllocladus asplenifolius Podocarpaceae Phyllocladus hypophyllus Podocarpaceae Phyllocladus toatoa 23 Podocarpaceae Phyllocladus trichomanoides 23 Podocarpaceae Podocarpus acutifolius Podocarpaceae Podocarpus affinis Podocarpaceae Podocarpus alpinus Podocarpaceae Podocarpus angustifolius Podocarpaceae Podocarpus annamiensis Podocarpaceae Podocarpus archboldii Podocarpaceae Podocarpus aristulatus Podocarpaceae Podocarpus bracteatus Podocarpaceae Podocarpus brassii Podocarpaceae Podocarpus brevifolius Podocarpaceae Podocarpus chinensis Podocarpaceae Podocarpus chingianus Podocarpaceae Podocarpus coriaceus Podocarpaceae Podocarpus costalis Podocarpaceae Podocarpus costaricensis Podocarpaceae

11 Podocarpus cunninghamii Podocarpaceae Podocarpus dispermus Podocarpaceae Podocarpus drouynianus Podocarpaceae Podocarpus elatus Podocarpaceae Podocarpus elongatus Podocarpaceae Podocarpus fasciculus Podocarpaceae Podocarpus gnidioides Podocarpaceae Podocarpus grayae Podocarpaceae Podocarpus guatemalensis Podocarpaceae Podocarpus henkelii Podocarpaceae Podocarpus hispaniolensis Podocarpaceae Podocarpus lambertii Podocarpaceae Podocarpus latifolius Podocarpaceae Podocarpus lawrencii Podocarpaceae Podocarpus longifoliolatus Podocarpaceae Podocarpus lucienii Podocarpaceae Podocarpus macrophyllus Podocarpaceae Podocarpus matudae Podocarpaceae Podocarpus milanjianus Podocarpaceae Podocarpus nakaii Podocarpaceae Podocarpus neriifolius Podocarpaceae Podocarpus nivalis 20 Podocarpaceae Podocarpus novae- caledoniae Podocarpaceae Podocarpus nubigenus Podocarpaceae Podocarpus oleifolius Podocarpaceae Podocarpus parlatorei Podocarpaceae Podocarpus pilgeri Podocarpaceae Podocarpus polyspermus Podocarpaceae Podocarpus polystachyus Podocarpaceae Podocarpus purdieanus Podocarpaceae Podocarpus rotundus Podocarpaceae Podocarpus rubens Podocarpaceae Podocarpus rumphii Podocarpaceae Podocarpus salignus Podocarpaceae Podocarpus salomoniensis Podocarpaceae Podocarpus sellowii Podocarpaceae Podocarpus spathoides Podocarpaceae Podocarpus spinulosus Podocarpaceae Podocarpus subtropicalis Podocarpaceae Podocarpus sylvestris Podocarpaceae Podocarpus totara 20 Podocarpaceae

12 Podocarpus trinitensis Podocarpaceae Podocarpus urbanii Podocarpaceae Prumnopitys andina 20 Podocarpaceae Prumnopitys ferruginea 20 Podocarpaceae Prumnopitys ferruginoides Podocarpaceae Prumnopitys ladei Podocarpaceae Prumnopitys taxifolia Podocarpaceae Retrophyllum comptonii Podocarpaceae 1 1 1? 2 Retrophyllum minor Podocarpaceae 1 1 1? 2 Retrophyllum rospigliosii Podocarpaceae 1 1 1? 2 Retrophyllum vitiense Podocarpaceae 1 1 1? 2 Saxegothaea conspicua 19 Podocarpaceae Sundacarpus amarus Podocarpaceae 1 1??? Sciadopitys verticillata 24 Sciadopityaceae Amentotaxus argotaenia 1 Taxaceae Amentotaxus formosana Taxaceae Amentotaxus poilanei Taxaceae Amentotaxus yunnanensis Taxaceae Austrotaxus spicata Taxaceae 0 0??? Cephalotaxus fortunei Taxaceae Cephalotaxus griffithii Taxaceae Cephalotaxus hainanensis Taxaceae Cephalotaxus harringtonia 1 Taxaceae Cephalotaxus koreana Taxaceae Cephalotaxus lanceolata Taxaceae Cephalotaxus latifolia Taxaceae Cephalotaxus mannii Taxaceae Cephalotaxus oliveri Taxaceae Cephalotaxus sinensis Taxaceae Cephalotaxus wilsoniana Taxaceae Pseudotaxus chienii Taxaceae Taxus baccata 1 Taxaceae Taxus brevifolia Taxaceae Taxus canadensis Taxaceae Taxus chinensis Taxaceae Taxus cuspidata Taxaceae Taxus floridana Taxaceae Taxus fuana Taxaceae Taxus globosa Taxaceae Taxus sumatrana Taxaceae Taxus wallichiana Taxaceae

13 Torreya californica Taxaceae Torreya grandis 1 Taxaceae Torreya jackii Taxaceae Torreya nucifera Taxaceae Torreya taxifolia Taxaceae Table S2. Support for transition rate models of character evolution in Pinaceae that allow transitions to a state with vestigial sacci and downwards- facing drops (referred to as with state ) and those that exclude them ( without state ). This character combination is not known to occur in extant Pinaceae and models that exclude it receive higher support (best supported model shown in bold). Model Pinaceae (with state) Pinaceae (without state) ARD ARD 1 * ARD ARD 2 * ARD ARD 3 * ARD ARD 4 * ARD ARD 5 *

14 Figure S1. Ancestral character states in backbone nodes as determined by parsimony reconstruction methods, where half- filled circles indicate ambiguous character states. Numbers on the phylogeny represent clades or individual taxa that do not have buoyant pollen, and correspond to the numbers listed in Table 1 of the main text. Pollination Mechanism Saccate Pollen Buoyant Pollen Downwards Ovule Pollination Drop Character Absent Pinaceae Arau Podocarpaceae Tax Cupressaceae Millions of Years Ago

15 Trait evolution in Tsuga Most Tsuga species have highly reduced frills around the pollen grains that are believed to be vestigial sacci, and the pollen is not buoyant in water. One species (Tsuga mertensiana) has more typical sacci, although these are not as well developed as in most saccate conifer species. These grains are described as buoyant and functional (Owens et al. 1998), although more work needs to be done on their physical properties. This variation in saccus morphology in Tsuga and uncertainty in their physical properties complicates understanding character evolution in the clade, which is only further complicated by the phylogenetic relationships among the taxa. Molecular analyses suggest that Tsuga mertensiana is nested within a non- saccate Tsuga clade (Havill et al. 2008; Leslie et al. 2012), implying that fully developed sacci and pollen buoyancy has either been lost twice within the lineage or has been lost once and then regained in T. mertensiana. When the pollen buoyancy character is reconstructed by itself, likelihood suggests two losses of buoyancy, although not with high support. On the other hand, correlated models of character evolution favor the re- evolution of pollen buoyancy in T. mertensiana (Fig. 4A,C in main text). Due to these complications, and the uncertainty in the physical properties of the pollen, we ran an alternative set of analyses in which T. mertensiana pollen was scored as non- buoyant. As expected, the best- fit models for this data set are those in which pollen buoyancy is never regained once lost (ARD 2 models). This is the case both for all conifers (Fig. S2A) and for Pinaceae (Fig. S2B). Figure S2. Support for transition rate models of character evolution if Tsuga mertensiana pollen is scored as non- buoyant in A) all conifers and B) Pinaceae. The best- supported model (ARD 2*) is given in bold and transition rates for this model are shown in on the left side of the panel. The color scheme follows Fig. 4 in the main text; light gray = saccate, gray = buoyant, black = downwards- facing ovules, white = character absent. A thick circle around the character state indicates the fixed root state.

16 Diversification Analyses Differential diversification due to shifts between character states could potentially influence ancestral state character reconstruction (Madison et al., 2007). We therefore used the Binary State Speciation and Extinction model (BiSSE; Madison et al., 2007), a method that obtains joint estimates of speciation, extinction, and transition rates for binary characters, to test if transitions to and from saccate pollen were related to shifts in diversification. BiSSE models were implemented in the R package diversitree (Fitzjohn, 2012). These analyses indicate that saccate clades do have significantly higher speciation and extinction rates compared to non- saccate conifer clades, although their net diversification rate was not significantly different (Table S3). An ancestral state character reconstruction based on the BiSSE model was the same as results from our initial ML model (Fig. S3), suggesting that differential diversification does not have a major influence on the distribution of character states or in the reconstruction of ancestral states. Table S3. Results of BiSSE analysis. Results are significantly different (p<0.01) from a model in which rates are held constant. Net refers to net diversification rate. State Origination Rate (λ) Extinction Rate (μ) Net (λ μ) Non- saccate Saccate

17 Fig. S3. Ancestral character state reconstruction for saccate pollen using BiSSE. For clarity, only major backbone nodes are shown. Red circles indicate nodes where previous analyses (Leslie et al. 2012; Leslie et al. 2013) found shifts to higher net diversification rates in conifers. Note that these instances are not associated with changes in saccate pollen.

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