— 16 — 



furcatis vel inferioribus maximis antice pinnatifidis, sterilibus 

 subaCutis. fertilibus apice singulum sorum ferentibus; venis 



prominulis, pinnatifidis vel fur- 

 catis, setis minutis crassis parce 

 instructis; soris in apice laci- 

 niae immersis, urceolatis, ore 

 dilatato, rotundato; receptaculo 

 incluse. 



^. , 7, . , D , . This little new species re- 



Fig. i. Trichomanes Bonapartei ^ 



n. sp. Two leaves, nat. size ; the Semblés very much in habit, 

 stérile tips of the left-hand figure size and cutting T. întramar- 



were ail broken off; Sorus, magni- gly^^h Hook. et Grev. Ic. tab. 



221, but otherwise it is widely 

 diffei^ent, and I think I am right in placing it under the 

 section Microtrichomanes Prantl. From ail species of that 

 group it differs chiefly by its broad-winged stipes; from 

 T. digitatum, the only African species of that group it 

 differs moreover by the non-ciliate margins. 



Madagascar: Région floristique du Centre. Massif de 

 Manongarivo, vers 1200 mètres d'altitude. Sur les troncs et 

 les pierres. H. Perrier de la Bâthie, n° 7745 B, Juin 1909. 



Trichomanes pachyphlebium C. Chr. sp. nov. — Fig. 5. 



Trichomanes e sectione Davalliopsidis, rhizomate? (erecto?); 

 stipite folii examinati 10 cm longa, 1 mm crasso, griseo, 

 stricto, glabro, lineis angustissimis bimarginato. Lamina 

 ovato-oblonga, 15 cm longa, medio 6 cm lato, rigida, fere 

 coriacea, crassa, luce transeunte vix translucida, laete-viridi, 

 ad paginam superiorem praesertim ad rachin costasque-pilis 

 rufis articulatis brevibus sparse onusta, bipinnatifida-tripin- 

 natisecta. Pinnis parum obliquis, alternis, sessilibus, decur- 

 rentibus, ita rachi auguste alata, e basi postice cuneata, 

 antice rachi parallela aucta, 1,5 cm lata, versus apicem 

 sensim attenuatis, fere ad costam pinnatifidis. Pinnulis 

 obliquis, approximatis, oblanceolatis vel oblongis, basi 

 postice cuneata decurrentibus, per alam ad costam au- 

 gustam conjunctis, pinnatifido-lobatis, 2 — 2 Va mm latis. 

 Lobis falcatis, approximatis, subacutis, 4 — 5 utroque latere, 

 integris vel raro indestincte et inaequaliter bidentatis. Vena 

 mediani pinnularum basi decurrente; venis lateralibus valde 



