Portal de Periódicos da CAPES

Concerning Azolla imbricata

1961; American Fern Society; Volume: 51; Issue: 3 Linguagem: Inglês

10.2307/1546101

1938-422X

Eugene Y. F. Shen,

Plant Pathogens and Fungal Diseases

into the short stipe, (1.5) 2-3.5 (4.5) cm. long, 3.5-4.5 (6) mim. broad, rounded to moderately acute at the apex, entire or very slightly undulate, subcoriaceous and rather thick in texture, both surfaces rather densely covered with ebeneous-brown, stiff hairs up to 2 mm. long, more densely so on the costa and the margin; veins entirely hidden, simple or furcate above the base in fertile condition, the acroscopic veinlet very short, the basiscopic veinlet nearly reaching the margin. Sori elliptic, dorsal on simple veins or on anterior veinlets, arranged in a row close to costa, usually more or less confluent at maturity; sporangia naked or bearing a long seta; spores nearly spherical, trilete, minutely tuberculate. HONSHU. San-no-taki Falls, at Nachi, Pref. Wakayama, on riverside mossy rocks in constant spray of a waterfall in dense mountain forests at about 400 meters elevation, G. Nakai 5052 (type KYO), ibid., Iwatsuki 2510 (KYO). KYUSHU. Along the Suzu-kawa, Yakushima Island, in thickets at about 50 meters elevation, Kawanabe 4991(KAG). DEPARTMENT OF BOTANY, UNIVERSITY OF KYOTO, KYOTO, JAPAN.