Comprehensive Description
(
الإنجليزية
)
المقدمة من North American Flora
Cyathea pubescens Mett.; Kulin, lyinnaea 36 : 164. 1869
Caudex stout, erect, up to 12 meters high, 15-20 cm. in diameter, prickly, densely tessellate with definite scars; fronds erect or erect-spreading, lanceolate, 2-2.5 meters long, 40-70 cm. broad in the middle, tapering in both directions, the apex short-acute, reduced rather abruptly at the base, the pinnae extending nearly or quite to the caudex ; primary rachis brownish or castaneous, at the base chaffy with long narrow glossy brown scales and densely armed with stout curved spines, particularly upon the upper sxirface, the upper rachis rusty-pub erulous and sometimes slightly muricate beneath, very densely yellowish-hirsute above with long filamentous yellowishwhite scales intermixed ; pinnae very numerous, approximate or somewhat imbricate, horizontal, ligulate, 20-35 cm. long, 2.5-3.5 cm. broad, sessile, rigid, comprising 60 or more pairs of segments below the serrate attenuate apex, the secondary rachis rustyfur furaceous toward the base, rustypilose in the apical portion ; segments coriaceous, dull-green, paler below, contiguous, elongate-oblong, falcate, subacute or acute, adnate, the margins sharply crenate-serrate or biserrate and subrevolute, or the lowermost segments free and deeply crenate ; costae rustyfur furaceous at the base, pilose toward the apex with yellowish -white spreading hairs, these extending to the veins ; veins evident, 15-18 -pairs, close, forked at the base ; sori small, 8-10 pairs, seated against the costule, contiguous, extending half way or more to the apex ; indusia yellowish-brown, rigid, shallow, persistent ; receptacles conspicuous, setiferous.
Type locality : Jamaica.
Distribution : Common in the Blue Mountains of Jamaica, at altitudes of from 1500 to 2100 meters ; also in Porto Rico, at the summit of Bl Yunque ; reported from Haiti.
- الاقتباس الببليوغرافي
- Lucien Marcus Underwood, Ralph Curtiss BenedictWilliam Ralph Maxon. 1909. OPHIOGLOSSALES-FILICALES; OPHIOGLOSSACEAE, MARATTIACEAE, OSMUNDACEAE, CERATOPTERIDACEAE, SCHIZAEACEAE, GLEICHENIACEAE, CYATHEACEAE (pars). North American flora. vol 16(1). New York Botanical Garden, New York, NY
Alsophila auneae: Brief Summary
(
الفيتنامية
)
المقدمة من wikipedia VI
Alsophila auneae là một loài dương xỉ trong họ Cyatheaceae. Loài này được D.S. Conant mô tả khoa học đầu tiên năm 1983. Danh pháp khoa học của loài này chưa được làm sáng tỏ.
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