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!Grimmia ovalis (Hedw.) Lindb. Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Publicado en: Acta Societatis Scientiarum Fennicae 10: 75. 1871. (Acta Soc. Sci. Fenn.) Name publication detail
 

Datos del Proyecto Nombre (Last Modified On 3/16/2009)
Aceptación : Accepted
Datos del Proyecto     (Last Modified On 3/16/2009)
General Reference:

Illustration & Map     (Last Modified On 3/16/2009)
Related Objects:
Illustrations: X.-J. Li (ed.) 2000 (Pl. 8, figs. 9–20); T. Cao & Vitt 1986 (Fig. 23).


Click here for distribution map.

Mapa: Grimmia ovalis (Hedw.) Lindb. (Distribution in China)

Distribución     (Last Modified On 3/16/2009)
Distribución:
Habitat: on rocks, occasionally on thin soil in high mountain areas; alt. 2200–3300 m.
Distribution: China, Sikkim, Pakistan, Nepal, India, Russia, Europe, North Africa, North America, and Australia.
 

Specimens Examined     (Last Modified On 3/16/2009)
Specimens Examined:
Chinese specimens examined: Heilongjiang: Wu-da-lian-chi City, C. Gao 13247 (IFSBH). Jilin: Mt. Changbai, C. Gao 1320 (IFSBH). Nei Mongol: Gen-he City, Man-gui, C. Gao 12882 (IFSBH). Shaanxi: Mt. Huashan, W.-M. Zhu 79095 (IFSBH). Shanxi: Mt. Nanwutai, C. Gao & T. Cao 16629 (IFSBH). Sichuan: Bai-xing Co., Q. Li 842 (IFSBH); Mian-ning Co., Q. Li 1108 (IFSBH); Mt. Gongga, Z.-F. Fang & S.-D. Zhao 001435 (IFSBH); Wen-chuan Co., Allen 6717A (MO); Yuan-yan (Yen-yuen) Co., Handel-Mazzetti 2725 (as Grimmia setschwanica Broth., sp. nov. determined by Brotherus, B, H). Xinjiang: He-jing Co., S. He 951157 (MO), R.-L. Hu 950137 (MO); Mu-lei Co., D.-S. Wang 610 (MO); Wu-su Co., J.-C. Zhao 953209 (MO). Xizang: Bo-mi Co., G.-C. Zhung & J.-Y. Feng 14922 (IFSBH); Cha-yu Co., G.-C. Zhang & J.-Y. Feng 14835 (IFSBH); Long-zi Co., M. Zang 159 (HKAS); Mi-lin Co., K.-Y. Lang 662 (IFSBH, PE); Tong-mai Co., G.-C. Zhang & J.-Y. Feng 14631 (IFSBH). Yunnan: Bi-jiang Co., M. Zang 7198 (HKAS); Gong-shang Co., M.-Z. Wang 11151 (PE); Kun-ming City, W.-X. Xu 253 (HKAS), Handel-Mazzetti 726 (W); Li-jiang Co., W.-X. Xu 0828 (HKAS); Wei-xi Co., D.-C. Zhang 9 (HKAS); Yang-bi Co., Redfearn et al. 1034 (MO); Zhong-dian Co., X.-J. Li 81-8641 (HKAS).
 

Notas     (Last Modified On 3/16/2009)
general taxon notes:
The distinguishing features of G. ovalis are: the leaves unkeeled with long, hyaline hair-points, the leaf margins plane or slightly incurved, the costa broad, but not terete, the setae long and straight, the capsules exserted and erect, the opercula obliquely long rostrate, the calyptrae cucullate, and the sexual condition dioicous. In China Grimmia ovalis is not as common as previously thought. Numerous specimens identified as G. ovalis or G. commutata in China are actually G. longirostris, which is easily recognized by the keeled leaves and recurved leaf margins. Some Chinese specimens of G. ovalis have rather long setae, up to 4–7 mm long. The size of the plants and length of the hyaline hair-points are variable. Generally, the plants from northeastern China are rigid and smaller with leaves ending in short hair-points, while those from southwestern China are more robust with leaves ending in long hair-points.
 
Four names are involved in the nomenclature of this species: Grimmia ovalis (Hedw.) Lindb. (basionym, Dicranum ovale Hedw. 1801), G. ovata Web. & Mohr (1804), G. commutata Hueb. (nom. illeg., 1883), and G. affinis Hornsch. (Hornschuch 1819). Sayre (1951) recognized G. ovalis and G. affinis, considering G. ovata and G. commutata to be synonymous with G. ovalis; however, the typification of G. ovalis was not clarified. Hedwig (1801) gave only a brief description of Dicranum ovale by referencing it to the page and plate in his earlier work, “St. Cr. III P. 81 t. 34A” (Hedwig 1792). The figures show the leaves of D. ovale to be channeled above with incurved margins. There are five specimens named G. ovalis in Hedwig’s herbarium. Four of the specimens are identical to the type of G. affinis in having keeled leaves with a recurved margin on one side and an autoicous sexual condition. Two of these four specimens are labeled as “Dicranum ovale 1796”, one as “Dicranum ovatum”, and the other as “Bryum petrocum ... Bryum verticillatum...”. None of these four specimens matches the description and the plate in the protologue. The fifth specimen contains a note “Grimmia com(m)utata B. et S. Specimin a ab Hedwig ad iconem dicrani ovalis adhibita” and is characterized by having channeled, unkeeled leaves, with plane or slightly incurved margins. This specimen, which Sayre (1951) seemingly saw and referred to G. ovalis and G. commutata, could serve as the type specimen, even though the specimen does not totally match the original plate (in St. Cr. III: t. 34A) (with mitrate calyptrae as shown in the plate, but cucullate from the specimen and with operculum straightly beaked in the plate, but obliquely beaked from the specimen). There is no evidence to indicate which one of these specimens was actually the one from which Hedwig based for his description. T. Cao and Vitt (1986) considered selecting this last mentioned specimen to be the lectotype as the best choice to typify Dicranum ovale.
 
Furthermore, Sayre (1951) synonymized Grimmia ovata with G. ovalis, without examining the type specimen of the former. There is a specimen deposited in BM, appearing to have the handwriting information as “Grimmia ovata n. sp. Holmia(m). Similima Dicr. ovata, a qui recedit (...) peristome”. This description matches the original one in the protologue; thus, it was selected as the lectotype of G. ovata. Our examination of the lectotype indicates that it is conspecific with G. ovalis.

 

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17. Grimmia ovalis (Hedw.) Lindb.   卵叶紫萼藓   luan-ye zi-e xian
Acta Soc. Sci. Fenn. 10: 75. 1871. Guembelia ovalis (Hedw.) C. Müll., Syn. Musc. Frond. 1: 774. 1849. Dryptodon ovalis (Hedw.) Hartm. ex H. Möller, Ark. Bot. 26A(2): 14. 1934, nom. inval., pro synon. Campylopus ovalis (Hedw.) Wahlenb., Fl. Suec. (ed. 2), 2: 748. 1826. Dicranum ovale Hedw., Sp. Musc. Frond. 140. 1801. Type. Germany: “Thuringiae prope Isenacum, in granite montis piniferi Franconiae, Austriae prope Engelhardszell.” (lectotype G, designated by T. Cao & Vitt 1986).
Grimmia commutata Hueb., Muscol. Germ. 185. 1833, nom. illeg. incl. spec. prior.
Grimmia ovata Web. & Mohr, Natun. Naturh. Reise Schwedens 132. 1804. Type. Norway: “In rupibus prope Holmiam” (lectotype BM, designated by T. Cao & Vitt 1986).
 
Plants medium-sized to robust, up to 3 cm high, yellowish green to green above, dark brown to blackish below, in loose, rigid tufts. Stems sparsely to densely branched, with well developed central strand in cross section. Leaves erect, imbricate when dry, erect-spreading to spreading when moist, 2.4–3.3 mm long, lanceolate from an ovate base, not keeled, somewhat concave, channeled above, ending in a short or long, more or less denticulate, hyaline hair-point; margins plane or slightly incurved on both sides; costa percurrent, broad at base of leaves, becoming narrow upwards, flattened, not terete in cross section, with distinct small abaxial cells, especially in basal part; upper cells bistratose, rarely 3-stratose, obscure, small, irregularly quadrate, 5–7 µm wide, with incrassate walls; median cells 7–15 µm × 5–7 µm, bistratose in places, sinuose; basal marginal cells short-rectangular to quadrate, 9–20 µm × 9–11 µm, with straight, thick transverse walls, somewhat hyaline; basal juxtacostal cells rectangular to elongate, 12–40 µm × 5–7 µm, slightly to strongly sinuose. Dioicous. Perichaetial leaves larger than upper vegetative ones, with long, hyaline or yellowish brown awns. Setae erect, variable in length, up to 4–7 mm long, yellow to yellowish brown; capsules exserted, erect, straight, yellowish brown, ovoid, narrowed at mouth, 1.5–2.5 mm long, smooth when dry; exothecial cells short-rectangular to rectangular, with thin walls; stomata present near base of urn; annuli well developed, consisting of elongate cells in 3–4 rows, with rather thick walls; opercula long rostrate, with oblique beaks; peristome teeth erect, linear-lanceolate to lanceolate, irregularly 2–3-cleft and perforate above, outer surface coarsely papillose above, nearly smooth below; inner surface papillose throughout. Calyptrae cucullate, lobed at base. Spores 12–14 µm in diameter, yellowish, finely granulose.
 
 
 


 

 
 
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