All Floras      Advanced Search
FOC Vol. 2-3 Page 4, 7, 10, 11, 147 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 2-3

21. Dennstaedtiaceae

碗蕨科 wan jue ke

Authors: Yan Yuehong, Qi Xinping, Wenbo Liao, Prof. Fuwu Xing, Ding Mingyan, Wang Faguo, Zhang Xianchun, Zhaohong Wu, Shunshuke Serizawa, Jefferson Prado, Michele Funston, Michael G. Gilbert & Hans P. Nooteboom

Plants terrestrial, sometimes climbing. Rhizome usually long creeping, solenostelic, siphonostelic, or polystelic, usually covered with multicellular hairs, less often with few-celled, cylindrical, glandular hairs or multicellular bristles, scales absent. Fronds medium-sized to large, sometimes indeterminate, monomorphic; stipes not articulate to rhizome, usually hairy, rarely glabrous; lamina 1-4-pinnately compound, thinly herbaceous to leathery, hairy or glabrous, without scales; rachis grooved adaxially, sometimes with buds (Monachosorum); pinnae opposite or alternate; veins usually free, pinnate or forked, not reaching margin, reticulate without included veinlets in Histiopteris. Sori marginal or intramarginal, linear or orbicular, terminal on a veinlet or on a vascular commissure joining apices of veins; indusia linear or bowl-shaped, sometimes double with outer false indusium formed from thin reflexed lamina margin and inconspicuous inner true indusium; paraphyses present or not. Spores tetrahedral and trilete, or reniform and monolete, spinulose, tuberculate, or smooth. Gametophytes green, cordate. x = 26, 29, 30, 31, 33, 34, 38, 46, 47, 48, and probably others.

Ten or 11(-15) genera and ca. 170(-300) species: mostly tropical but also extending into temperate regions; seven genera and 52 species (16 endemic) in China.

Ching Ren-chang, Fu Shu-hsia, Wang Chu-hao & Shing Gung-hsia. 1959. Dennstaedtiaceae and Monachosoraceae. In: Ching Ren-chang, ed., Fl. Reipubl. Popularis Sin. 2: 198-256, 357-371; Wu Shiewhung. 1990. Pteridiaceae and Histiopteris. In: Ching Renchang & Shing Kunghsia, eds., Fl. Reipubl. Popularis Sin. 3(1): 1-10, 89-90.

1 Sori protected by cup-shaped or half-cup-shaped indusium   (2)
+ Sori naked or protected by reflexed marginal tooth or flap, sometimes also with a linear inner true indusium   (3)
2 (1) Sori marginal.   6 Dennstaedtia
+ Sori intramarginal.   7 Microlepia
3 (1) Rhizome with bristlelike, chestnut-brown scales; pinnae always opposite with a reduced pair of basal stipulelike pinnules.   4 Histiopteris
+ Rhizome hairy, scales absent; pinnae opposite or alternate with basal pinnules similar to more distal pinnules   (4)
4 (3) Lamina thinly herbaceous, dark green to blackish; rhizome with glandular hairs; gemmae usually present on rachis.   1 Monachosorum
+ Lamina papery to leathery, rarely herbaceous, green to pale green; rhizome with eglandular or a mixture of glandular and eglandular hairs; gemmae absent   (5)
5 (4) Sori terminal on vein, orbicular or oval, each protected by a reflexed tooth or marginal flap, or naked.   5 Hypolepis
+ Sori along marginal connecting vein, linear, protected by double indusium, outer layer formed from inrolled lamina margin, inner true indusium thinner, inconspicuous, sometimes absent   (6)
6 (5) Stipe with several vascular bundles; rachis straight; spores trilete.   2 Pteridium
+ Stipe with only 1 vascular bundle; rachis zigzag; spores monolete.   3 Paesia

Lower Taxa


Related Objects  
  • Dennstaedtiaceae (PDF)
  • PDF
  • Pteridophytes (Treatment)
  • Web Page

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




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