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FIGURE 4 in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China

FIGURE 4. Geographical distributions of Leptochilus tridigitatus (red rings) and L. poilanei (green ring).

FIGURE 3. Leptochilus tridigitatus H.J. Wei.—A. Habit.—B in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China

FIGURE 3. Leptochilus tridigitatus H.J. Wei.—A. Habit.—B. Portion of sterile lamina showing venation.—B. Portion of apical lobe of fertile frond showing venation and sori.

FIGURE 2. Leptochilus tridigitatus H.J. Wei.—A. Habitat.—B. Habit.—C in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China

FIGURE 2. Leptochilus tridigitatus H.J. Wei.—A. Habitat.—B. Habit.—C. Rhizome with sterile fronds and lower portions of stipes of fertile fronds.—D. Adaxial view of sterile frond.—E. Abaxial view of fertile lamina.—F. Portion of apical lobe of fertile frond.—G. Rhizome scale.

FIGURE 1 in Leptochilus tridigitatus (Polypodiaceae), a new fern species from Guangdong, China

FIGURE 1. Maximum likelihood phylogeny of Leptochilus based on five plastid markers (rbcL, rps4, rps4-trnS, trnL, trnL-F). Maximum likelihood bootstrap support (MLBS) values are above the branches.

opennotspecifiedNov 2015View details →

FIGURE 1. Leptochilus oblongus.—A. Habit.—B in Leptochilus oblongus (Polypodiaceae), a new fern species from northern Vietnam

FIGURE 1. Leptochilus oblongus.—A. Habit.—B. Cross section of rhizome, stippled: vascular tissue; black: sclerenchyma strands.—C. Appressed scale from rhizome.—D. Spreading scale from rhizome (drawn by Liang Zhang based on the isotype at MO).

FIGURE 4. A–E in A new hybrid and further taxonomic notes on Brazilian tree ferns (Cyatheaceae)

FIGURE 4. A–E. Cyathea mexiae (Schwartsburd 2983 [VIC]): A. Base of petiole, showing aculei, scales, and scurf. B. Petiolar aculei and scurf. C. Medial pinna. D. Rachis, pinna-rachis, and pinnules, abaxially, showing sericeous axes and sessile pinnules. E. Segment, abaxially, showing sori, hairs, and bullate scales on costule. F–J. Alsophila salvinii (Schwartsburd 3369 [VIC]): F. Base of petiole, showing scales and broken-off aphlebiae. G. Entire aphlebia with laminar expansions. H. Broken-off aphlebia without laminar expansion. I. Medial pinna. J. Rachis, pinna-rachis, and pinnules, abaxially, showing scurf, scales, and segments.

FIGURE 3. A–C in A new hybrid and further taxonomic notes on Brazilian tree ferns (Cyatheaceae)

FIGURE 3. A–C. VIC: Cyathea corcovadensis s. str. (Silva 1593): A. Departure of pinnule (tangential section) from pinna-rachis (cross section), showing the schlerenquima ring internally on pinnule articulation (arrows). B. Mesophyll in cross section. C. Stomata from abaxial surface of lamina. D–F. Cyathea ×stella-matutina (Schwartsburd 3303 [VIC]): D. Departure of pinnule (tangential section) from pinna-rachis (cross section), showing the sclerenchyma ring internally on pinnule articulation (arrows). E. Mesophyll in cross section (asterisk showing intercellular protuberances). F. Stomata from abaxial surface of lamina. G–I. Cyathea microdonta (Schwartsburd 3300 [VIC]): G. Departure of pinnule (tangential section) from pinna-rachis (cross section), showing the absence of a sclerenchyma ring internally. H. Mesophyll in cross section (asterisk showing intercellular protuberances). I. Stomata from abaxial surface of lamina.

FIGURE 5. A in A new hybrid and further taxonomic notes on Brazilian tree ferns (Cyatheaceae)

FIGURE 5. A. Petiolar scale of Cyathea mexiae (Schwartsburd 2983 [VIC]). B. Petiolar scales of Alsophila salvinii (Schwartsburd 3369 [VIC]). Bar of 0.5 cm.

FIGURE 2. A in A new hybrid and further taxonomic notes on Brazilian tree ferns (Cyatheaceae)

FIGURE 2. A. Petiolar scale of Cyathea corcovadensis s. str. (Schwartsburd 3455 [VIC]). B. Petiolar scale of C. ×stella-matutina (Schwartsburd 3303 [VIC]). C. Petiolar scale of C. microdonta (Schwartsburd 3462 [VIC]). Bar of 0.5 cm.

FIGURE 1. A in A new hybrid and further taxonomic notes on Brazilian tree ferns (Cyatheaceae)

FIGURE 1. A. Lamina apex of Cyathea corcovadensis s. str. (Bovini 1537 [VIC]). B. Lamina apex of C. microdonta (Schwartsburd 3300 [VIC]). C–G. Cyathea ×stella-matutina (Schwartsburd 3303 [VIC]): C. Lamina apex. D. Petiolar aculei. E–G. Medial pinnules, showing variation on degree of dissection and size.

FIGURE 3 in New circumscription of Trichomanes cupressoides Desvaux (Hymenophyllaceae), an endemic filmy fern from the Seychelles (Indian Ocean), and new insights into the genus Abrodictyum C.Presl in the western Indian Ocean

FIGURE 3. Details of pinnules and ultimate segments. A. Seychellois Abrodictyum cupressoides (Rouhan 135, P00696126). B. Malagasy Abrodictyum « cupressoides » (Rakotondrainibe 6229, P00243868). C. Malagasy Abrodictyum «rigidum» (Rakotondrainibe 6111, P00212654). D. Trichomanes boivinii (Rouhan 326, P00749272). E. Abrodictyum guineense (Jongkind 5504, P06243593). F. Trichomanes madagascariense (Rouhan 367, P00749322). Scale = 500 μm.

FIGURE 4 in New circumscription of Trichomanes cupressoides Desvaux (Hymenophyllaceae), an endemic filmy fern from the Seychelles (Indian Ocean), and new insights into the genus Abrodictyum C.Presl in the western Indian Ocean

FIGURE 4. Bayesian phylogeny inferred from rbcL sequences. Support values on nodes are posterior probabilities. The three morphotypes (see text and Fig. 1) are outlined by a box. The dotted line defines the Africa-Indian Ocean clade close to neotropical Trichomanes (see text). The arrow shows the valid A. rigidum (according to the type). Tr = trichomanoid lineage; Ab = subgenus Abrodictyum; Pa = subgenus Pachychaetum; T = genus Trichomanes.

FIGURE 2 in New circumscription of Trichomanes cupressoides Desvaux (Hymenophyllaceae), an endemic filmy fern from the Seychelles (Indian Ocean), and new insights into the genus Abrodictyum C.Presl in the western Indian Ocean

FIGURE 2. Comparison of the three morphotypes. A. Malagasy Abrodictyum «cupressoides» (Rouhan 267, P00749196). B. Seychellois Abrodictyum cupressoides (Rouhan 135, P00696126). C. Malagasy Abrodictyum «rigidum» (Rakotondrainibe 6111, P00212654). Scale = 2 cm.

FIGURE 1 in New circumscription of Trichomanes cupressoides Desvaux (Hymenophyllaceae), an endemic filmy fern from the Seychelles (Indian Ocean), and new insights into the genus Abrodictyum C.Presl in the western Indian Ocean

FIGURE 1. In situ population of Abrodictyum cupressoides in the rainforest understory in Seychelles, Mont du Nord, Mahé Island. Abrodictyum cupressoides can locally form dense populations while other Abrodictyum species in the region seem more sparsely distributed (photograph by B. Senterre).

FIGURE 1B in The phylogenetic affinities of Pellaea connectens, a rare endemic Chinese fern

FIGURE 1B. Phylogeny of more taxa reconstructed using maximum likelihood derived from the analysis of rbcL sequences, crown group. Abbreviations: A, Aleuritopteris clade; D, Doryopteris clade sensu Windham & al. (2009).

FIGURE 3 in The phylogenetic affinities of Pellaea connectens, a rare endemic Chinese fern

FIGURE 3. Habitat and morphology of Argyrochosma connectens. A–C: habitat; D: plant morphology; E: lamina; F–G: pinna and ultimate segment; H: rhizome scale; I: spore.

FIGURE 2 in The phylogenetic affinities of Pellaea connectens, a rare endemic Chinese fern

FIGURE 2. Maximum likelihood phylogeny of the focal taxa derived from the analysis of rbcL, trnL–trnF, rps4, rps4–trnS and trnG-trnR sequences. Meaning of abbreviations and symbol are the same with figure 1.

FIGURE 1A in The phylogenetic affinities of Pellaea connectens, a rare endemic Chinese fern

FIGURE 1A. Phylogeny of more taxa reconstructed using maximum likelihood based on the analysis of rbcL sequence, basal part. Branch length corresponds to the estimated number of substitutions (see bar). Values above branches correspond to the maximum likelihood bootstrap values. Only bootstrap values>50% are shown. Species marked with an oval are focus in this study. Abbreviations (clade names following Windham & al. (2009): B, bommeriid clade; M, myriopterid clade; N, notholaenid clade; P, pellaeid clade; H, hemionitid clade. The inlay figure shows the entire phylogram; the arrow indicates where it has been split into Fig. 1A and Fig. 1B.

opennotspecifiedSep 2015View details →

FIGURE 3. Xiphopterella parva—A. Habitat. B. Abaxial lamina. C. Adaxial lamina. D in New species and records of grammitid ferns (Polypodiaceae) for Vietnam

FIGURE 3. Xiphopterella parva—A. Habitat. B. Abaxial lamina. C. Adaxial lamina. D. Portion of adaxial lamina showing the distribution of hairs. Scale bars: A = 1 cm, B, C = 3mm, D = 3mm.