﻿9. TRICHOMANES. 87 



§ 2. EUTRICHOMANES. c. OonoeormuiS. 



1. Fronds not proliferous. 

 2. Edges not ciliate. 



3. Margin not bounded by a thickened line, nor purveyed with a sub- 

 marginal spurious vein. 

 4:. Spurious veins wanting throughout. 



5. Fronds very small, suborbicular-flabellate, 5 — 7^2 m.M, 

 each way. Segments rather numerous. (7) T. saxifragoides. 

 S.S. Fronds somewhat larger, iO — 20 m.M. long. Segments 

 not numerous. 



6. Stipes short, i — 4 m.M. long. Fronds cuneate' 

 flabellate, sometimes simple and oblong. 



(8) T. Aswijkii. 



G.6. Stipes longer, iO — 30 m.M. long. Fronds roundish 



in general outline. (9) T. nitidulum. 



4=.S:. Spurious veins present. (10) T. parvulum. 



3.3. Margin bounded by a thickened line or purveyed with a submarginal 



spurious vein. 



;|<. Marginal line (spurious vein) continuous. (11) T. nanum. 



>^.;tc. Submarginal spurious vein interrupted. (12) T. rupicolum. 

 3.2. Edges ciliate. 



$. Ciliae tooth-like, distant. Veins naked. (13) T. digitatum. 



§.§. Ciliae capillary, approximate. Veins hairy. (14) T. palmatifidum. 

 £.1. Fronds proliferous, i. e. the stipe, rachis or costa bearing i or more sessile 

 or stalked secondary frondiculae, which gives the whole frond the appearance 

 of a very irregularly and pinnately divided single frond, besides which there 

 often are also not-proliferous ones. 

 :^. Frondiculae few. 



§. Fronds and frondiculae ternate or quinate. (15) T. difTusum. 



$.$. Fronds and frondiculae with more numerous segments. 



(16) T. minutum. 

 5tc.>^. Frondiculae many. 



•J*. Rhizome hairy. Ultimate segments complicate. (17) T. proliferum. 

 -^.f. Rhizome nearly naked. Ultimate segments not complicate. 



(18) T. Teysmanni. 



