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76 results for “Hymenophyllaceae”
Fig. 5 in Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros
Fig. 5. Western Indian Ocean Hymenophyllum subg. Mecodium, illustrating morphological resemblance of taxa which are difficult to distinguish (see text). A. Hymenophyllum kuhnii C.Chr. from Comoros, firstly identified as H. polyanthos (Sw.) Sw. (F.Rakotondrainibe et al. 6864, P00312328). B. Hymenophyllum capense Schrad. from Madagascar, initially identified as H. fumarioides Bory ex Willd. (F.Rakotondrainibe et al. 6121, P00212664). C. Syntype of Hymenophyllum kuhnii C.Chr. from Tanzania (B200092782). D. Hymenophyllum inaequale (Poir.) Desv., representative specimen from La Réunion (L.Bauret 190, P).
Fig. 2 in Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros
Fig. 2. Illustration of representative descriptors and states used in the Xper database (see Appendix 1). A. Hymenophyllum hirsutum (L.) Sw., typical bilabiate sori (S) without a developed base, fully hairy lamina with pedunculated brown trichomes (see inset). B. Didymoglossum robinsonii (Hook. ex Baker) Copel., false veins (FV) parallel but not connected to true veins (TV) and marginal dark trichomes clustered here by 6 (see inset). C. Crepidomanes inopinatum (Pic.Serm.) J.P.Roux, typical trichomanoid sori (S) with a developed tubular base, lips are here dilated as a collar. D. Didymoglossum rotundifolium (Bonap.) J.P.Roux, false veins (FV) parallel but not connected to true veins (TV) and continuous submarginal false vein (smFV), here the one-cell thick lamina appears well translucent. E. Crepidomanes bipunctatum (Poir.) Copel., false veins more or less continuous and parallel to margins (mFV) and not connected to true veins (TV). F. Hymenophyllum sibthorpioides (Bory ex Willd.) Mett. ex Kuhn, bilabiate sori (S) with toothed margins. Photographs by A.H. Saïd.
Fig. 4. Terrestrial Comorian Hymenophyllaceae. A in Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros
Fig. 4. Terrestrial Comorian Hymenophyllaceae. A. Abrodictyum pseudorigidum Bauret & Dubuisson, first identified as A. rigidum (Sw.) Ebihara & Dubuisson, (F.Rakotondrainibe et al. 6771, P00312031). B. Trichomanes boivinii Bosch, new for the archipelago according to the last inventories (as discussed in text) (F.Rakotondrainibe et al. 6675, P00311390). Scale bar for both species = 3 cm.
Fig. 3 in Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros
Fig. 3. Representative Comorian Hymenophyllaceae as observed in situ in rainforests (here from Grande Comore or Mohéli). A. Endemic Didymoglossum kirkii (Hook.) Ebihara & Dubuisson (G.Rouhan et al. 925, P00684886). B. Hymenophyllum sibthorpioides (Bory ex Willd.) Mett. ex Kuhn (G.Rouhan et al. 888, P02439806). C. Didymoglossum hildebrandtii (Kuhn) Ebihara & Dubuisson (M.Pignal et al. 3456, P02439793). D. Hymenophyllum kuhnii C.Chr. (G.Rouhan 897, P02439807). E. Crepidomanes bipunctatum (Poir.) Copel. (G.Rouhan et al. 882, P02439805). F. Hymenophyllum hirsutum (L.) Sw. (M.Pignal et al. 3487, P02439796). Photographs by G. Rouhan. Scale bars = 1 cm.
Fig. 1 in Disentangling the diversity and taxonomy of Hymenophyllaceae (Hymenophyllales, Polypodiidae) in the Comoros
Fig. 1. Location of the Comoros archipelago in the western Indian Ocean; close-up on the four islands in grey inset; islands in white form the Union of Comoros, Mayotte in grey is a French overseas department.
Data from: Systematics of Hymenophyllum subg. Mecodium (Hymenophyllaceae) in Taiwan
—Hymenophyllum subg. Mecodium, composed of the taxonomically notorious H. polyanthos and approximately 15 other closely related taxa, are common elements of filmy fern communities in the tropical and subtropical moist forests. In Taiwan, although only H. polyanthos and one or two closely related taxa were recognized in recent studies, considerable morphological variation has been observed among populations throughout the island. Thus, we conducted an extensive morphological investigation, as well as a molecular phylogenetic analysis to clarify the specific diversity and phylogenetic relationships within subg. Mecodium in Taiwan. Field and herbaria surveys helped in recognizing five morphs in Taiwan, mainly differentiated by the combination of certain traits, viz., the presence or absence of stipe wings, general frond size and shape, degree of laminar crispation, sori position, and involucre shape. The different morphs had diverse ecological preferences. The phylogenetic tree, inferred from the sequence of plastids rbcL and rps4-trnS, demonstrated that subg. Mecodium materials in Taiwan comprise several well-supported lineages, mostly corresponding to the classification based on morphology. Comparing with the protologues and type specimens of 34 related scientific names, the five morphs are herein recognized as five independent species. A new species, H. exquisitum, is described here. Also, the status of H. paniculiflorum is reconfirmed and that of H. fujisanense, H. parallelocarpum, and H. punctisorum reinstated Only H. exquisitum and H. parallelocarpum are endemic to Taiwan among all the species studied. In addition, the names Hymenophyllum blumeanum, H. integrum, H. microsorum, H. polyanthos, H. tenellum, and H. wrightii are now excluded from the regional flora, and several related taxa from China, Taiwan, and the Philippines treated as synonyms. This study unravels the deep phylogenetic relationships within the subg. Mecodium in Taiwan and Eastern Asia.
Data from: Systematics of Hymenophyllum subg. Mecodium (Hymenophyllaceae) in Taiwan
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FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–c Hymenophyllaceae: a Hymenophyllum polyanthos. b Polyphlebium angustatum. c Trichomanes polypodioides. d Phlegmariurus martii (Lycopodiaceae). e–o Orchidaceae: e Acianthera auriculata. f Acianthera glanduligera. g Acianthera nemorosa. h Acianthera parahybunensis. i Acianthera ramosa. j Acianthera tricarinata. k Anathallis adenochila. l Anathallis aristulata. m Anathallis linearifolia. n Anathallis microphyta. o Anathallis sclerophylla. in Augusto Ruschi Biological Reserve vascular epiphytes: a hotspot in the mountains of the Atlantic Forest of Southeastern Brazil
FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–c Hymenophyllaceae: a Hymenophyllum polyanthos. b Polyphlebium angustatum. c Trichomanes polypodioides. d Phlegmariurus martii (Lycopodiaceae). e–o Orchidaceae: e Acianthera auriculata. f Acianthera glanduligera. g Acianthera nemorosa. h Acianthera parahybunensis. i Acianthera ramosa. j Acianthera tricarinata. k Anathallis adenochila. l Anathallis aristulata. m Anathallis linearifolia. n Anathallis microphyta. o Anathallis sclerophylla.
FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–g Bromeliaceae: a Vriesea poenulata. b Vriesea pulchra. c Vriesea racinae. d Vriesea rhodostachys. e Vriesea simplex. f Vriesea tijucana. g Vriesea vagans. h Thoracocarpus bissectus (Cyclanthaceae). i–j Dryopteridaceae: i Elaphoglossum luridum. j Elaphoglossum plumosum. k–n Gesneriaceae: k Codonanthe devosiana. l Nematanthus albus. m Nematanthus crassifolius. n Nematanthus kautskyi. o Hymenophyllum caudiculatum (Hymenophyllaceae). in Augusto Ruschi Biological Reserve vascular epiphytes: a hotspot in the mountains of the Atlantic Forest of Southeastern Brazil
FIGURE. Vascular epiphytes representatives of the Augusto Ruschi Biological Reserve, Santa Teresa, Espírito Santo, Brazil. a–g Bromeliaceae: a Vriesea poenulata. b Vriesea pulchra. c Vriesea racinae. d Vriesea rhodostachys. e Vriesea simplex. f Vriesea tijucana. g Vriesea vagans. h Thoracocarpus bissectus (Cyclanthaceae). i–j Dryopteridaceae: i Elaphoglossum luridum. j Elaphoglossum plumosum. k–n Gesneriaceae: k Codonanthe devosiana. l Nematanthus albus. m Nematanthus crassifolius. n Nematanthus kautskyi. o Hymenophyllum caudiculatum (Hymenophyllaceae).
FIGURE 2. Phylogenetic relationships within the genus Abrodictyum, from a in Abrodictyum inexpectatum, an unexpected new fern species (Hymenophyllaceae, Polypodiidae) for Madagascar, as revealed by an integrative approach
FIGURE 2. Phylogenetic relationships within the genus Abrodictyum, from a BI analysis on rbcL sequences, only in-group is shown. The values on nodes are Posterior Probabilities (PP) superior to 0.90. The pink box shows the Afro-Malagasy clade, all other species are from Asia, Australasia and/or Pacific islands, or from Neotropics (A. rigidum). A. aff. angustimarginatum (in bold) = A. inexpectatum Dubuisson & Rouhan sp. nov.
FIGURE 1 in Abrodictyum inexpectatum, an unexpected new fern species (Hymenophyllaceae, Polypodiidae) for Madagascar, as revealed by an integrative approach
FIGURE 1. Comparison of some Malagasy Abrodictyum. A‒B: A. aff. angustimarginatum (Bonap.) J.P. Roux (= A. inexpectatum Dubuisson & Rouhan sp. nov.; G. Rouhan s.n., P02434058). A. Habitus. B. Detail of terminal segments, scale = 0.5 mm. C‒D: A. angustimarginatum (L. Bauret et al. 144, P02434057). C. Habitus. D. Detail of terminal segments, scale = 0.5 mm. E‒G: A. franceae Bauret & Dubuisson (G. Rouhan 1602, P02434061). E. Habitus in the wild. F. Detail of the diagnostic curled pinnules in the wild. G. Detail of terminal segments, scale = 0.5 mm. (A, C & E: photographs by L. Bauret).
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 5 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region
FIGURE 5. Bayesian phylogeny inferred from rbcL sequences showing relationships within genus Abrodictyum (noted A). Support values on nodes are posterior probabilities. The species/populations studied and compared here are shown in coloured boxes (the colours used here are arbitrary). T = trichomanoids. Clades noted α and β are commented in text.
FIGURE 1 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region
FIGURE 1. Comparison of three Abrodictyum species in situ, which show a similar gross morphology but are clearly molecularly distinct according to Bauret et al. (2015). A. A. rigidum (Sw.) Ebihara & Dubuisson, Guadeloupe (photograph by J.-Y. Dubuisson); B. Abrodictyum sp1 (= A. pseudorigidum Bauret & Dubuisson, sp. nov.), Madagascar (photograph by L. Bauret); C. Abrodictyum sp2 (= A. franceae Bauret & Dubuisson, sp. nov.), Madagascar (photograph by L. Bauret); D. Abrodictyum sp2 (= A. franceae sp. nov.), the fronds are often more or less curled in the wild as shown here (photograph by L. Bauret).
FIGURE 4 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region
FIGURE 4. Multivariate analyses. PCA (above) and CDA (below) results for selected trait ratios. The PCA shows the contribution of each trait to overall morphological variation; the CDA shows the distribution of the four taxa in morphological 2-D trait space.
FIGURE 7 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region
FIGURE 7. Abrodictyum franceae Bauret & Dubuisson, sp. nov. (G. Rouhan et al. 267, holotype P00749196). A. Habitus; B. Detail of a pinna with sori; C. Detail of indusium; D. Detail of laminar cells, the arrow shows the margin.
FIGURE 6 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region
FIGURE 6. Abrodictyum pseudorigidum Bauret & Dubuisson, sp. nov. (F. Rakotondrainibe 2708, holotype P00059914). A. Habitus; B. Detail of a pinna, the arrows show some of the sori; C. Detail of a terminal pinnule with a basal sorus; D. Detail of indusium; E. Detail of laminar cells, the arrow shows the margin.
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