zcvm. eENEBA OS IXBN9 : 



(o) Indnsvam ou/p-sha^ed, extrorse ma/rgmal, 

 * Veins free. 



137. DEPAEIA, SooTcer and Ghremlle, Icon. Ml. t. 154, et 



Addenda. 



DlCKSONIiE Sp., Auct.; ClBOTII sp., Aucf. 



Sori inToluorately-indusiate, globose, marginal; tlie Blnall 

 punotiform reeeptacles and pateriform i.e. shallow cup-shaped 

 membranaceous mdusia, asserted and stipitate, terminating the 

 veins, which are excurrent in the marginal teeth ; the indmsmm 

 extrorse-marginal, not recurred. Veim (of segments) simple, 

 rarely forked, from a central costa, free, reaching the margin, 

 beyond which those of the fertile teeth are exserted forming 

 stalks to the sori. 



Fronds herbaceous, pinnato-pinnatifid, proliferous. Bhizome 

 thick, decumbent. — The peculiarity of this genus consists in its 

 cup-shaped indusia, standing out direct from the edge of the 

 frond on little stalks, which are variable in length. Sometimes, 

 it appears, the plants bear here and there athyrioid sori, as weU 

 as the more abundant deparioid ones ; this probably occurs when 

 the plants are in a less vigorous condition, as we observe, that 

 in cultivation, the earlier fronds have the sori mostly sessile, 

 while afterwards, as the plants acquire vigour of growth, the 

 little footstalks of the sori are more developed. 

 Ex. ; B. prolifera, Mlc. and Grev. 



* * Veins reticulated. 



138. ClONIDIITM, Moore, Gard. Comp. 143 ; Id., Fro- 

 ceed. Lin. Soc. ii. 212. 



Trichiocaepa, Soaker (§) : J. Smith; Patawbma, J. Smith MS.; Dh- 

 pABLffi sp., JSooker. 



Sori involucrately-indusiate, globose, marginal; the small 

 punetiform receptacles, and pateriform i.e. shallow cup-shaped 

 indusia, exserted and stipitate terminating the veinlets, here and 

 . there excurrent in the marginal teeth ; the indwsium extrorse- 

 marginal, not recurved. Veins sub-pinnate or pinnately-forked 

 from a central costa; venules reticulated, the lower forming 



