All Floras      Advanced Search
FOC Vol. 2-3 Page 74, 75 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 2-3 | Ophioglossaceae | Botrychium

6. Botrychium strictum Underwood, Bull. Torrey Bot. Club. 30: 52. 1903.

劲直阴地蕨 jin zhi yin di jue

Botrypus strictus (Underwood) Holub; Japanobotrychum strictum (Underwood) M. Nishida ex Tagawa; Osmundopteris stricta (Underwood) M. Nishida.

Plants summer-green. Rhizomes erect, short, cylindrical. Fronds 30-70 cm tall. Sterile lamina: stalk 15-25 cm, up to 1 cm in diam., fleshy; lamina subternate, bi- or tripinnatifid, dull green, broadly pentagonal; pinnules sessile, narrowly oblong, base decurrent to costal wing; ultimate segments elliptic, dentate, apex rounded; costae and costules beneath sparsely lanuginose. Sporophore arising at top of common stipe, as long as sterile lamina; lamina bipinnate, spikelike; pinnae short; sporangia ellipsoid-globose, each on tip of short but distinct ultimate axes or veins. Spore surface coarsely verrucose. 2n = 88, ca. 90.

Forests. Chongqing, Gansu, Heilongjiang, Henan, Hubei, Jilin, Liaoning, Nei Mongol, Shaanxi, Sichuan [Japan, Korea].


Flora of China @
Browse by
Advanced Search

Flora of China Home




 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |