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Bryopsida: Ptychomitriaceae)*

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Bryopsida: Ptychomitriaceae)* J Hattori Bot. Lab. No. 100: 41- 52 (A ug. 2006) NEW SYNONYMS AND COMBINATIONS IN THE GENUS PTYCHOMITRlUM (BRYOPSIDA: PTYCHOMITRIACEAE)* TONG CA01,2 , BENRONG ZUOI,2 , SHUI-LIANG GUO I,3 , JAAKKO HYVONEN3 AND VnVI VIRTANEN4 ABSTRACT. Based on a comparison of type and other specimens, Ptychomitrium patens (Miill. Hal.) Par. and P. obtusifolium (Borth.) Par. are reduced to synonymy of P. sellowianum (Miill. Hal.) Jaeger, and P. papil/osum (Herz.) Card. is reduced to synonymy of P. chimborazense (Mitt.) Jaeger. Three new combinations are proposed: P. gardneri var. angustifolium (Nog.) Cao & Guo, P. sellowianum var. angustifolium (Broth.) Cao & Guo, and P. hieronymi var. obtusifolium (Ther.) Cao & Guo. Pty­ chomitriumferrugineum (Herz.) Broth. is described in detail based on the holotype. KEy WORDS : Bryopsida, New combination, Ptychomitricaeae, Ptychomitrium, Synonym, Typifica­ tion. INTRODUCTION Ptychomitrium was elevated to the generic level by Fiirnrohr (1829). Since then, 145 taxa have been recorded (Cao & Guo 2001, Crosby, Magill & Bauer 1992, Fiirnrohr 1829, Guo et al. 2000, Schiavone & Biasuso 1997, Wijk et al. 1964, 1969). In our previous stud­ ies, we have reported two new species, 19 new synonyms, and the geographical distribution pattern of the genus (Cao & Guo 2001; Cao & Koponen 1997; Cao & Vitt 1994; Cao, Guo & Vitt 1995, 2001 , Cao, Guo & Yu 2003a b; Guo & Cao 1999, 2000a, b; Guo et at. 2000). In the present paper, we report three synonyms and three combinations of Ptychomitrium based on our study of herbarium specimens from BM, H, lE, NICH, and S. Ptychomitrium ferrugineum (Herz.) Broth. is also described in detail based on the type material from lE. NEW SYNONYMS Ptychomitrium sellowianum (Miill. Hal.) laeger., Ber. S. Gall. Naturw. Ges. 1872-1873: 104.1874. (Ad.l: 382). (Figs. 1- 19) ==Brachysteleum sellowianum Miill. Hal., Syn. 1: 769. 1849. Type: Patria. Brasilia, in Campis Mon­ tevidensibus: Sellow (isotype: H!). = Brachysteleum depressum Miill. Hal., Hedwgia 38 : 153. 1899. == Ptychomitrium depressum (Miil!. Ha!.) Par. , Ind. Bryo!. Supp!. 289. 1900. Type: Natal, Jammeriappen, 1. Dittrich 1898 19. Hb. Ar­ boreti Zoeschen-Dieck. (isotype: H!) (fide Guo & Cao, 2000a). * The project was supported by National Natural Science Foundation of China (Project No. 30370111 , 30570121). I College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China. 2 Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. 3 Plant Biology, P. O. Box 65 , FIN-00014 University of Helsinki, Finland. 4 Botanical Museum, P. O. Box 7, FIN-00014 University of Helsinki, Finland. 42 1. Hattori Bot. Lab. No. 100 2 0 0 6 = Ptychomitrium weberbaueri Broth., Bot. Jahrb. 56 (Beibl. 123): 10. 1920. Type: Prov. Sandia: San­ dia; Felsen; 2100m (615) (holotype: H!) (fide Guo & Cao, 2000a). = Brachysteleum vernicosum Miill. Hal. , Linnaea 43 : 450. 1882. '" Ptychomitrium vernicosum (Mull. Ha!. ) Kindb., Enum. Bryin Exot. 94. 1888. Type: Argentinia Tucumanensis, Siambon. et in Cuestis borealibus supra Oran cum Leptodontio rhacomitrioidi (isotype: JE!, S! , BM! , lectotype S!) (fide Schiavone & Biasuso, 1997). = Brachysteleum patens Mul!. Hal., Bull. Herb. Boiss. 6: 108. 1898. '" Ptychomitrium patens (Miill. Hal.) Par. Ind. Bryol Suppl. 289, 1900, syn. novo Type : Brazil, Serra Itatiaia, 1800m, altum, ad rupes, Martio 1894: E. Ole, 1829 (isotype: H!). = Glyphomitrium obtusifolium Broth., Bih. K. Svensk. Vet. Ak. Hand!. 26 Afd. 3(7): 20. 1900. '" Pty­ chomitrium obtusifolium (Borth.) Par., Ind. Bryol. ed. 2, 4: 132. 1905, syn. novo Type: Brazil, Rio Grande do SuI.: Porto Alegre, Pedras Brancas, ad saxa caespites parvos efformans (n. 95 ex p) (holotype: H!). Plants medium-sized, 1- 3 cm high. Leaves crisped and strongly keeled above when dry, spreading to erect-spreading when moist, linear-lanceolate from an oblong base, 3-4.5 mm long, plicate below; leaf margins entire, thickened to 3 or 4-stratose, revolute on both sides below; costa single, strong, up to the apex; lamina cells smooth, bistratose above, unistratose below; upper lamina cells small, irregularly quadrate, 5- 7 pm wide; me­ dial lamina cells short-rectangular to rectangular, 8- 14 pm long, 5-6 pm wide; basallami­ na cells near margins short-rectangular to rectangular, 9- 30 /1m long, 8-12 /1m wide, those along costa 30- 81 /1m long, 9- 16 /1m wide, with thin and straight walls. Setae short, erect, 2-4 mm long. Capsules elongate-ovoid to ovoid; peristome teeth lanceolate, 2 or 3 clefts nearly to base, densely papillose; annulus transparent, well developed; opercula with long erect beak. Spores finely papillose, 12- 15 pm. Calyptra mitrate, plicate, covering middle or lower part of capsule. When Brotherus (1900) reported P obtusifolium (as Brachysteleum obtusifolium) from Brazil, he considered P obtusifolium similar to P sellowianum, and pointed out that the for­ mer differed from the latter only by its obtuse leaf apices and smaller capsules. Our exami­ nation of these two types and other specimens from H, S, and FH showed that the differ­ ences in leaf apex and capsule size are not obvious. Ptychomitrium patens was reported by Muller (1898) (as Brachysteleum patens) based on the collection of E. Ule from Brazil. Having compared the type specimens of P patens and P sellowianum in H, we found that P patens is identical to P sellowianum except that its leaf bases are not distinctly plicate and its basal lamina cells are slightly sinuous. We consider that Ptychomitirum obtusifolium (Broth.) Par. and P patens (Miill. Hal.) Par. are both synonymous with P sellowianum (Mull. Hal.) Jaeger. Ptychomitrium sellowianum (Miill. Hal.) Jaeger. has been recorded from Argentina, Figs. 1- 19. Ptychomitrium sellowianum (Mull. Ha!.) Jaeger.- 1- 5: Leaves; 6- 7, 9: Transverse sections of upper part of leaf; 8: Transverse section of basal part of leaf; 10: Ce ll s on the lower part of lea f; 11 - 13 : Basal leaf cells along costa; 14- 16: Basal leaf cells near margins; 17- 19: Capsules. (1 - 2, 6, 11 , 14, 19 drawn from isotype of P sellowianum; 3, 7, 12, 15 , 17 from holotype of P obtusifolium; 4, 5, 8- 10, 13 , 16, 18 from isotype of P patens). Line scale: A=0.5 mm (figs. 1- 5, 18); B= 0.5 mm (figs. 17, 19); C=20 ,um (figs. 6- 16). T. C AO ET AL.: New synonyms and combinations in Ptychomitrium 43 UUUUU w ~~ Dc nn o OoOOODOOO'?,QO ~6 ~ ~~n 0 (\ " 9 OOOooooOOOQJ UUUl 11 00 11 I ABC UODC 13 12 D DC 14 00nO [ n nr UUUL Dooe OOOt n~qr 15 19 18 2 3 4 5 44 1. Hattori Bot. Lab. No. 100 2 0 0 6 Brazil, Bolivia, Colombia, Uruguay, Paraguay, Peru, and South Africa, with a disjunction between South America and South Africa (Guo & Cao 2000a). This species is somewhat similar to P. crispatum (Hedw.) Jaeger., which can, however, be distinguished from P. sell­ owianum by having: I) leaves not revolute on both sides below; 2) short-rectangular to rec­ tangular basal lamina cells; and 3) bistratose leaf margins on the upper part. Specimens examined: Argentina- Tucuman, Camion Taf'del valle. no. 7615 , Dec. 1946. (FH). Brazil- Catharina, Turbarao ad rupes prope Conconhaz, E. Ule, no. 11 , Oct., 1889 (S); Catharina, E. Ule, no. 32902, 1889 (JE); Catharina, E. Ule, no. 845 (H); Sao Pauo, V. Schiffiner, 22. 5. 1901 (S); Sao Paulo, V. Shiffner, no. 960 (H); Theresopolis, F. Holnal, I!. 3. 95. (H); Theresaopolis, F. V. Hokual 1809 (H); Theresaopolis, Duson, 221711902 (H); Sede parque Zateoual Orgair nits, C. Hizziui, 1952.9.8 (FH); Serra dos orgaos ad rupes oktober, E. Ule, 1896 (S); Estado Rio de Janeiro, Mozi de Curces, aufFelesn, E. Froehlich, no. 14 (S); Serra Geral, E. Ule no. 538 (H); Sarra Geral. E. Ule, no. 539, Apr. 1889, (H); Sarra dos Orgaos E. Ule, no. 2057. (H); Bonssisusao, J. Weir, no. 54 (H); Uruguay - N. Garcia Zorr6n, no. 3270 (PC); W. G. Heata, PI. uruguayensis, no. 81047 (JE); Mowberiveo, no. 46, 1898 (JE); Sierra dr lao Animas Terram. Felippone no. 1250, 1358, 1393, 928 (H). Santa Clara no. 426 (FH); Peru - Sandia; Felsen; 2100m (615), Holotype of Ptychomitrium we­ berbaueri Broth (H!); Paraguay - Balanse 1878-84 (H); South Africa- Natal, JammerJappen: J, Dit­ trich 1898 Ig. Hb. Arboreti Zoeschen-Dieck (Isotype of Brachysteleum depressum Mull. Hal. : H); J. M. Wood no. 7123 (H); Swaziland: Mababane, E. S. Keny, 897 (H); Bolivia - Au Fels blaikeu im bergwall bei famaipata (ortcord) Th. Herzog, Dec., 07 (JE). Ptychomitrium chimborazense (Spruce ex Mitt.) Jaeger. Ber. St. Gall. Naturw. Ges. 1872- 73: 103. (1874) (Ad.l: 377) (Figs. 20-37) ,=Glyphomitrium chimborazense Spruce ex Mitt., J. Linn. Soc. Bot. 12: 107. 1869. Type: Ins. Sti Vin­ centis, Herb. Hook. Andes Quitenses, Chimborazo, Jameson, et ad pedem orientalem pracipuse­ cus secus oppidum Guano in Saxis (8500-11000 ped.), Spruce, no. 136 (lectotype: NY! selected here, isotypes: BM! E!). = Ptychomitrium buchtienii Broth., Mitt. Inst. Allg. Bot. Hamberg, 8: 403. 1931. Type: Sud-Peru: Arequipa, 2000-2500 m (E. Guenther et O. Buchfield no. 1976) (holotype: H!) (fide Deguchi 1987). = Glyphomitrium cochabambae Herz., Beih. Bot. Centralbl. 26(2): 63 . 1909.,=Ptychomitrium cochabambae (Herz.) Card. Rev. Bryol. 40: 44.1913. Type: Bolivia: An Felsen bei Cochabamba, ca. 2800 m, January 1908, leg. Th. Herzog (holotype: JE!; isotype: FI!). (fide Deguchi, 1987). = Brachysteleum emersum Miill. Hal., Linnaea 43: 448. 1882. ,=Ptychomitrium emersum (Miill. Hal.) Kindb., Enum. Bryin. Exot. 94. 1888. Type: Argentinia subtropica, Cuesta de pinos, ubi forma elegans nitidoviridis viget; in Monte Nevado prepe Salta, 11,000 ped. altum, ubi forma Sordida habitat. Catamarea, in convalle excelsa Granadillas in Valles (Vayas) altos supra yakutula (form sordida), inito Febr. 1872. (lectotype: BM! selected here, isotype: BM! S! JE!) (fide Crum Figs. 20- 37. Ptychomitrium chimborazense (Mitt.) Jaeger.-20: Transverse section of upper part of leaf; 21: calyptra and capsule; 22- 23: Leaves; 24: Basa11eaf cells near margins; 25 : Basal leaf cells along costa; 26: Spores; 27 : Capsule (figs.
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