lJre<.linacen', Oictyospor f. Ravenelia. 323 



s\& iucompl.). — Maculic^ fuseis, ouliatis ; sorls hypox^hyili:?, atris, 

 diffusis, pnlvoralPMtis; toieutosporis globosis, raJiatim 3-scptatis, 

 :itro-ca.ataneis, 24-30 a. diara., echinati.s, fwuieis funco -bruniiei.i, 

 usque ad 14^3 apico orist,atis vel palmatifidis ; pediccllo hyaliao, 

 tereti, 18-40^8. 



IJab. iii foUis HederoB Vahlii ii: ins. Ceylou, in foliis Hep- 

 t a p l e u r i e II i p-t i c i in horto Bogoriensi ins. .Javie (E. Xyman), 



bect. 4. OiclyosporjB. 



RAVENELIA Berk. — Syil. VII p. 770, IX p. 3J8, XI p. 210, .XIV 



pap;. WCio. 



1. Ravenella Humphreyana P. Hemi. Hedw. 1898, p. 278. ~ Soria 1139 

 uredosporiferis amphigenis, rotundatii, ferrugineis; iiredosporis sub- 

 globosis vel ovoideis, hyalino-brimnevilis, 12-16 « 11-15, episporio 

 minute verrucoso, paraphysibus clnvatis, brunneis, inferne sub- 

 hyalinis, 30-45*10-14; noris teleutosporiferis amphig<.nir3. spar^is, 

 ochraceis vel castajieis ; capitulis subglobosis, castaneis, 60-90 a. 

 diaui., levibus, pluri.sporideis ('10-12); sporis subcuneatis v penta- 

 ^onis, 13-17 IX. diam ; cystoidcis ovoideis, h^^-alinis. ca. 15 p. diam. 



Ilah. in foiiis Cassi* spec, .Kingston ius. Jamaicas (tiUM- 

 phrey). 



2. Ravenelia mesilliana Ell. et Barth. Bull. Torr. Bot Ci. 1898, luo 

 p. 508. — Soris amphigenis. orbicularibus, '/^-1 mm. diam., ssepe 

 confertis subconiiuentibusque, dein subnigris, epidermide raptA cm- 

 ■ctis ; capitulis hemispha^ricis, majoribus apice applanatis, 45-85 x. 

 diam., e 12-20 sporis compositis, in diametro 4-8-3poris ; tcleuto- 

 sporis e mutua pressione polygonalibus. 12-15 a. latis ; celiulis cy- 

 stoideis globosis v. ovatis, hyalinis v, subhyaiinis, 12-15 pi. diam.; 

 pedicellis ex hyphis 4-6 conglutinatis compositis, hyalinis v. pal- 

 iide coloratis, brevibus, 25-30 u. longis, deciduis. 



Hah. in foliis C a s s i ae b a u h i n i o i A i s , Mesilla Ne w Mexico 

 Amer. bor. ("Wooton). — K R. cassuecola A.tk differt aj)oris mi- 

 noribus magis nunierosis et stipite breviore deeidin). 



3. Ravenelia papiiiosa S{)eg. Fg. Arg. novi v. orit., p. 229(1899). — IHI 

 Maculis nullis v. parvuits, pallescenrjbus, indetcrminatie ; soris uro- 

 dosporiferis srepius hypophyliis, hemispliserico-orbiouiaribus, 0,3-0,6 

 mm. diam., compactiusculis, obscure fuivis; mvdosporis cciifertis, 

 ochraceis, obovatis, 20-26 « 15 20, anticc obtuse rotundatis, erasse 



