Comments
(
الإنجليزية
)
المقدمة من eFloras
Small plants of Trichostomum crispulum lacking sex organs may easily be mistaken for Weissia, but the cucullate apex and often chestnut brown costa of the former are fairly good characters. However, Weissia crispula Hedwig is not synonymous with Trichostomum crispulum. All Arctic specimens seen that had been identified as Weissia controversa are referred here to T. crispulum. This taxon has previously been considered rare in the New World; however, it is common in Mexico (R. H. Zander 1994e), where it has been known under various synonyms. Trichostomum crispulum is matched in size by the similar Weissia sharpii, which is distinguished by the incurved distal laminal margins. Trichostomum crispulum in the flora area differs from populations in Europe by the stem either black or brown (in Europe usually black), the adaxial costal cells more often entirely elongate or of quadrate cells in a patch at mid leaf and the distal abaxial surface of the costa sometimes rather papillose. In Mexico, this species fruits and produces a somewhat more robust peristome than in Europe, attaining 400 to 500 µm, seldom reduced or rudimentary as it commonly is in Europe. The length of peristomes, 350-450 µm, of Japanese specimens (K. Saito 1975), however, are easily within the range of variation of American populations. Weissia jamaicensis has much the same well-developed peristome as does New World T. crispulum, and, in Mexico and portions of the southern United States, W. jamaicensis intergrades with T. crispulum, having broadly lanceolate leaves with weakly inflexed distal margins, though retaining the characteristic strong and bulging adaxial stereid band of the costa. The merely erect (not sharply incurved) leaf margin of T. crispulum reveals the characteristic nonpapillose margin about 1 cell wide extending from the base to mid leaf. This also occurs in T. brittonianum. The specimens identified as T. brittonianum from Florida are, however, sterile and are not gametophytically distinct from T. crispulum.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
- الاقتباس الببليوغرافي
- Flora of North America Vol. 27: 489, 490, 493, 494, 502, 512, 514, 516, 518, 568 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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- Flora of North America @ eFloras.org
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- Flora of North America Editorial Committee
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- eFloras.org
Description
(
الإنجليزية
)
المقدمة من eFloras
Plants small to medium-sized, 10–30 mm high, yellowish green to light brown, in dense tufts. Stems erect, densely foliate, simple or irregularly branched. Leaves crisped when dry, erect-spreading when moist, narrowly lanceolate, acute or acuminate, upper lamina broadly channeled or cucullate, weakly sheathing at base; margins entire, somewhat incurved distally or wavy; costa stout, excurrent as a short awn; upper leaf cells rounded-quadrate, moderately thick-walled, green and obscure, each cell with several large, circular papillae on both surfaces; basal cells slightly elongate, irregularly rectangular, thin-walled, smooth. Dioicous. Setae 10–15 mm long, reddish; capsules erect, short-cylindrical; annuli differentiated, of 3–5 rows of vesiculose cells, persistent; peristome teeth erect, linear, 2-divided, papillose; opercula conic-rostrate, with a long, oblique beak. Spores reddish brown, coarsely papillose.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
الإنجليزية
)
المقدمة من eFloras
Stem rounded-pentagonal in section. Leaves naviculate, ovate to ovate-lanceolate or long-lanceolate, distal margins erect, entire, not bordered; apex blunt or rounded acute, seldom acute, cucullate; basal cells differentiated across leaf base as a U, commonly running up margins as a very narrow band of nonpapillose cells, not distinctly enlarged submarginally; distal laminal cells pluripapillose with low papillae; mucro conic, of 3-6 cells. Sexual condition dioicous; known only from perichaetiate plants in the flora area.
- ترخيص
- cc-by-nc-sa-3.0
- حقوق النشر
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
- الاقتباس الببليوغرافي
- Flora of North America Vol. 27: 489, 490, 493, 494, 502, 512, 514, 516, 518, 568 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
- المصدر
- Flora of North America @ eFloras.org
- محرر
- Flora of North America Editorial Committee
- المشروع
- eFloras.org
Distribution
(
الإنجليزية
)
المقدمة من eFloras
Distribution: China, Korea, Japan, Russia, Europe, north Africa, and North America.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
(
الإنجليزية
)
المقدمة من eFloras
Habitat: on rocks, thin soil over rocks, or on forest ground.
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Synonym
(
الإنجليزية
)
المقدمة من eFloras
Didymodon crispulus (Bruch in F. A. Müll.) Wils. in Hook., Brit. Fl. (ed. 4) 2: 30. 1833. Mollia crispula (Bruch in F. A. Müll.) Lindb., Musci Scand. 21. 1879. Tortella crispula (Bruch in F. A. Müll.) Jens., Danmarks Mosser 2: 321. 1923.
Barbula flavicaulis C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 4: 258. 1897. Type. China: Shaanxi (Schen-si), Lao-y-san, P. J. Giraldi 1384 (isotype H).
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Trichostomum crispulum
(
الألمانية
)
المقدمة من wikipedia DE
Trichostomum crispulum, auch Krauses Haarmundmoos genannt, ist eine Laubmoosart aus der Familie Pottiaceae.
Merkmale
Trichostomum crispulum bildet lockere bis dichte, gelbgrüne bis bräunlichgrüne Rasen. Die einzelnen Pflanzen sind 0,5 bis 3 Zentimeter hoch und gabelig verzweigt. Die Blätter sind im oberen Teil der Sprosse größer und dichter stehend als darunter. Sie sind aus breiterem Grund lanzettlich, oben rinnig mit mehr oder weniger eingebogenen Blatträndern, rasch in die oft kapuzenförmige Blattspitze verschmälert und besitzen eine als kurzes Spitzchen austretende Blattrippe. Trocken sind die Blätter kraus, feucht aufrecht abstehend bis sparrig abstehend.
Der Stämmchenquerschnitt zeigt einen deutlichen Zentralstrang. Die Laminazellen sind im oberen Blattteil rundlich-quadratisch, dicht papillös und 6 bis 11 µm groß, an der Blattbasis rechteckig, glatt und hyalin bis gelblich.
Das diözische Moos bildet selten Sporophyten aus. Die Seta ist etwa 0,7 bis 1,5 Zentimeter lang und rötlich, die aufrechte Sporenkapsel ist eilänglich bis zylindrisch und besitzt rötliche, fadenförmige und aufrechte bis schwach gedrehte Peristomzähne sowie einen geschnäbelten Deckel. Die rotbraunen Sporen sind papillös und etwa 12 bis 20 µm groß.
Variabilität
Die Art Trichostomum crispulum ist sehr formenreich. Von mehreren beschriebenen Formen wäre besonders Trichostomum crispulum var. viridulum (Bruch) Dixon zu erwähnen, diese wird manchmal als eigene Art (Trichostomum viridulum Bruch) abgetrennt. Hier handelt es sich um nur wenige Millimeter große Pflanzen mit schmäleren und lang zugespitzten Blättern.
Verbreitung und Standortansprüche
Die Verbreitung von Trichostomum crispulum reicht über weite Teile der Nordhalbkugel bis ins tropische Afrika. In Mitteleuropa kommt es vor allem in den Kalkgebirgen vor. In den Alpen steigt es bis in die alpine Höhenstufe.
Es wächst meist an frischen bis feuchten und schattigen Felsen, auf kalkreichen, skelettreichen Böden, auf Löß oder auf Sand- und Schotterflächen von Fluss- oder Bachufern.
Literatur
Weblinks
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Trichostomum crispulum: Brief Summary
(
الألمانية
)
المقدمة من wikipedia DE
Trichostomum crispulum, auch Krauses Haarmundmoos genannt, ist eine Laubmoosart aus der Familie Pottiaceae.
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Trichostomum crispulum
(
الفيتنامية
)
المقدمة من wikipedia VI
Trichostomum crispulum là một loài Rêu trong họ Pottiaceae. Loài này được Bruch miêu tả khoa học đầu tiên năm 1829.[1]
Hình ảnh
Chú thích
Liên kết ngoài
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Trichostomum crispulum: Brief Summary
(
الفيتنامية
)
المقدمة من wikipedia VI
Trichostomum crispulum là một loài Rêu trong họ Pottiaceae. Loài này được Bruch miêu tả khoa học đầu tiên năm 1829.
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Bài viết liên quan đến họ rêu Pottiaceae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 
