Alsophila minor (D. C. Eat.) R. Tryon

Cyathea minor D. C. Eaton, Mem. Am. Acad. II. 8 : 215. 1860
Caudex very slender, 2-4 meters high, 2.5-3.5 cm. in diameter, rough, the scars spaced below, closer above, oval to ovate, 1.5-2.5 cm. long, 1-1.3 cm. broad, obscinred at the apex by the short erect adnate fibrous stipe-bases of previous seasons ; fronds 3 or 4, erectspreading, broadly oblanceolate, bipinnate, 1-2 meters long, 20-40 cm. broad above the middle, the apex short-acuminate, the base gradually attenuate, the lower pinnae spaced, the lowermost vestigial and close to the caudex ; primary rachis brownish or yellowishbrown, sulcate above, pubescent, unarmed except for the blunt protuberant bases of the minute basal pinnae; pinnae 30^5 pairs, close, horizontal, narrowly oblong-lanceolate, the largest 15-20 cm. long, 2.5-3.5 cm. broad, chartaceous, sessile, pinnatifid to the costa into about 30-35 pairs of segments belowthe deeply crenate attenuate apex, the costa densely covered with long yellowish-white hairs with whitish bullate scales intermixed ; segments oblique, oblong, slightly falcate, mostly adnate, rounded at the base, entire (or the lowermost sometimes sessile and unequally crenate), obtuse, glabrous above, below sparingly, hirsute and with numerous small whitish bullate scales ; veins evident, 10-12 pairs, onceforked near the base or again half way to the margin, slightly hirtous ; sori 4-7 pairs, close to the costule ; indusia dark reddish-brown, deeply cyathiform, more or less pubescent, the margin even and somewhat constricted ; receptacle small, enclosed.
Type locality: Monte Verde, Cuba.
Distribution: Known only from the province of Oriente, Cuba, occurring on partially

Alsophila minor là một loài thực vật có mạch trong họ Cyatheaceae. Loài này được (D.C. Eaton) R.M. Tryon mô tả khoa học đầu tiên năm 1970.