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Published In: Deutschlands Flora, Abtheilung II, Cryptogamie 15: [14] ic. 1816. (Deutschl. Fl., Abt. II, Cryptog.) Name publication detail

Project Name Data (Last Modified On 3/16/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/4/2009)
General Reference:

Illustration & Map     (Last Modified On 5/4/2009)
Illustrations: Grimmia elongata Kaulf. (Figs. 1–11.)
Map: Grimmia elongata Kaulf. (Distribution in China)

Distribution     (Last Modified On 5/4/2009)
Habitat: on exposed rocks and cliff faces on open, dry slopes in high mountain areas; alt. 2100–3740 m.
Distribution: China, Japan, Sikkim, Nepal, Russia, Europe, and South and North America.

Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:
Chinese specimens examined: Hebei: Mt. Xiaowutai, X.-W. Kong 1257 (PE). Jilin: Mt. Changbai, C. Gao 7394 (IFSBH). Taiwan: Hua-lien Co., Shevock 14433 (CAS, MO); Ilan Co., C.-C. Chuang 1747 (UBC); Mt. Yushan (Morrison), Kao et al. 3000 (MO), Noguchi 6145, 6183 (NICH); Ping-tung Co., C.-C. Chuang 1523 (UBC). Xizang: Ya-dong Co., M. Zang 682 (HKAS). Yunnan: Da-li Co., Y.-G. Su 1419 (MO).

Notes     (Last Modified On 5/4/2009)
general taxon notes:



Grimmia elongata is characterized by having reddish brown plants, rather short hair-pointed or muticous leaves, and leaf margins narrowly recurved on one side. The basal leaf cells are elongate-rectangular, with straight and thin walls. The annuli are moderately developed, consisting of differentiated, rounded-hexagonal cells. The plants are dioicous. The present species is closely related to G. donniana, but the latter has long, hyaline hair-pointed leaf apices, plane leaf margins, and an autoicous sexual condition. Some specimens of G. longirostris when growing under an unfavorable condition present small plants with rather shortly hair-pointed leaves. Such specimens sometimes can be misidentified as G. elongata.



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6. Grimmia elongata Kaulf. in Sturm   长枝紫萼藓   chang-zhi zi-e xian
Deutschl. Fl., Abt. II, Cryptog. 2(15): 14. 1816. Dryptodon elongatus (Kaulf.) Hartm., Handb. Skand. Fl. (ed. 3), 271. 1838. Type. Austria: “im August 1812 auf der seethaler Alpe in Steyermark in Steinritzen mit reifen Fruchten.”
Grimmia decalvata Card., Bull. Herb. Boissier, ser. 2, 8(5): 332. 1908. Synonymized by Deguchi 1978.
Plants up to ca. 2 cm high, yellowish brown to reddish brown above, reddish brown to brownish below, in dense cushions, often forming large patches. Stems moderately branched from innovations, with poorly developed central strand. Leaves appressed, somewhat twisted when dry, spreading when moist, 1.6–2.0 mm long, lanceolate from a narrowly ovate base, slightly falcate, keeled above, ending in rather short, hyaline hair-points or muticous; margins narrowly recurved on one side, plane on the other side; costa stout, percurrent, somewhat narrowed toward leaf base, with nearly uniform cells or with small abaxial cells below median part of leaf in cross section; upper cells unistratose, bistratose at margins, irregularly quadrate to short-rectangular, 7–9 µm wide, with incrassate walls; median cells elongate-rectangular, 8–16 µm × 7 µm, conspicuously sinuose; basal cells transparent to translucent, elongate to rectangular, 24–48 µm × 7–9 µm, with thin and straight walls near margins and along costa. Dioicous. Perichaetial leaves similar to vegetative leaves, but larger with broad bases. Setae pale yellowish, 1.5–1.8 mm long, twisted to left when dry, straight; capsules yellowish brown, erect, obovate to elliptic, 1.2–1.4 mm × 0.4–0.6 mm; exothecial cells variable in shape, rounded-quadrate to rectangular, with thin walls; stomata numerous, at base of urn; annuli consisting of 2–3 rows of differentiated rounded-hexagonal cells with thick walls; opercula conic, with obtuse beaks; peristome teeth single, erect, lanceolate, pale yellowish above, yellowish brown below, with somewhat obtuse tips, outer surface densely and coarsely papillose above, nearly smooth in lower 1/3; inner surface papillose throughout. Calyptrae mitrate or cucullate. Spores yellowish, 11–14 µm in diameter, finely granulose.


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