— V — 



quam stériles longiores, apice obtusae vel rotundatae, basi cimeatae 

 vel plus minusve decuirentes; costa subtus prominens; costulae 

 (main veiiis) subtus vix prominentes; areolae absconditae, irregu- 

 lariter oblique quadrangulares, venulis liberis paucis niunitae; pili 

 stellati breviter ramosi, satis appressi. Sori numerosi, conferti, 

 juvéniles in tomento absconditi, demum prominentes, confluentes 

 et specie acrostichoidei, frondium fertilium faciem dorsalem omnino 

 obtegentes. 



Fertile fronds with a fevv scattered hydatodes on the npper 

 surface. — C. lingua Besv. differs from tins in having the rhizo- 

 me scales long-ciliated, the stipes longer, the fronds larger, and 

 the fertile fronds provided with marginal hydatodes only. 



Negros (Elmer No 9804). 



DavalBia bar bâta. r. A. v>. H, 



Colposoria, Eudavallia.—D. dissectae ./. Sm. affinis sed: Rhi- 

 zoma squamis nigris vel nigro-fuscis, appressis, suborbicularibus, 

 apice abrupte cuspidatis dense vestitum, cuspide londssiraa, fili- 

 formi, flexuosa, patenti, crebre barbato-ciiiata, ciliis horizontalibus, 

 ochraceis; frondes relative parvae; lobi fertiles sublanceolato- 

 clavati, basi cuneati vel lineares; sori quam lati 3-plo longiores, 

 dentibus 1 — 2 plus minusve elongatis saepe superati; indusio 

 apice truncato vel rotundato et a margine lobi usque ad ca 1 mm 

 remoto. 



Elmer's No 10690 from Mindanao, determined as D. bullata 

 Wall., difîers from this in having the apex of the indusium rather 

 reaching the margin of the lobule. Typical D. bullata has the 

 soriferous lobules relatively short and broad, and the sori much 

 shorter, at best ca l^/^ times as long as broad (Hook., Spec. 

 Fil., I, tab L B; Bedd., Ferns South. India, tab. XVII), and, 

 according to différent authors, pale rhizome scales. 



Java [Preanger Begtncies, Hallier No 671), Sumatra (? Kuta 

 Waya, Hagen). 



■>ict,yo|>ieris Kiemiteliifbrinii-i (Rac), v. A. r. f*.; 



Pleocnemia Leuzeana, Pr., var. hemiieHifonnis, Rac, Flor. Btz., I, 

 194; V. A. V. R., Mal. Ferns, 173; Aspidium hemUeliiforme, v.A.v.R., 

 in Herb. Bog. 



Arcypteris. -Diiïeva from Pleocnemia Leuzeana Pr. by its 



