foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.2-3 (2013)              | Family List  Dennstaedtiaceae  PDF     |  eFloras.org Link Font:+ Big | - Small
   21. Dennstaedtiaceae  
碗蕨科   wan jue ke
  
Authors: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.

  
1Sori 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    碗蕨属
+Sori intramarginal.7  Microlepia    鳞盖蕨属
   
3(1)Rhizome with bristlelike, chestnut-brown scales; pinnae always opposite with a reduced pair of basal stipulelike pinnules.4  Histiopteris    栗蕨属
+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    稀子蕨属
+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    姬蕨属
+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    蕨属
+Stipe with only 1 vascular bundle; rachis zigzag; spores monolete.3  Paesia    曲轴蕨属
   
   Lower Taxon
  • Dennstaedtia  Bernhardi  碗蕨属
  • Histiopteris  (J. Agardh) J. Smith  栗蕨属
  • Hypolepis  Bernhardi  姬蕨属
  • Microlepia  C. Presl  鳞盖蕨属
  • Monachosorum  Kunze  稀子蕨属
  • Paesia  J. Saint-Hilaire  曲轴蕨属
  • Pteridium  Gleditsch ex Scopoli  蕨属