4U8 rrpilin:irc;i> inferioros. Peridermium. 



dosporis brunneis, timica crassa atro-brunnea spinulosa, globoso- 

 ovoideis, 20-28 « 1 7- c 2)i ; poris germ. 8-12 prope aequatorem; pa- 

 raphysibus nullis; fceleutosoris atro-brunneis ; telnutosporarum ca- 

 pitulis lcvibus iuaequaliter globulosis, ovoideis, castaneis, 68-135 

 \i., ssepius 100 ;j.. diam.; teleutosporis in sect. diam. 6-8; cellulis 

 cystoideis hyalinis periphericis in pedicellum decurrentibus ; pedi- 

 cello hyaliuo, composito, brevi. 



Ilab. in foliis Brongniarti.r, Guadalajara Mexici (Holway). 

 — A P. epiphylla recedit numero pororum germ. et urcdosporis 

 brunneis. 

 2. Pleoravenelia Talpae Long, Bot Gaz. 1903, pag. 130, iig. 22. 134« 

 Soris subcutaneis, amphigenis, confertis; uredosoris parcis. ochra- 

 ceis, epidermide fissa einctis, minutis; uredosporis brunneis, tenui- 

 tunicatis, verrucosis ovoideo-subglobosis, solite inaequilateris, 25- 

 32^18-22, saepius 30*20; poris germ. ajquatorialibus, 4-6, vix 

 manifestis; paraphysibus nullis; teleutosoris minutis, atro-brun- 

 neis, numerosis, epidermide rupta cinctis; teleutosporarum capi- 

 tulis atro-brunneis, irregulariter globosis v. ovoideis, minute sed 

 distincte verrucosis, 65-115*35-40, typice 85 ;j,. diam., teleuto- 

 sporis in sect. diam. 4-8, verrucis irregulariter sparsis, semihya- 

 linis coronatis; cellulis cystoideis periphericis, hyalinis, in pcdicel- 

 lum compositum brevem hyalinum decurrentibus. 



Hab. in foliis Tephrosi;c Talp;e, Oaxaca Mexico (Hol- 

 way). — A P. epiphylla recedit capitulis verrucosis, uredosporis 

 brunneis; a P. Tephrosiai verrucis minoribus, uredosporis majori- 

 bus etc. 



NE0RAVENELIA Long, Bot. Gaz. 1903, p. 131 (Etym. neos novus et 

 Ravenelia). — Ab affini gen. Ravenelia differt secidiis pseudope- 

 ridio carentibus. Teleutosporus omnes 1-cellulares ut in Ravenelia, 

 qua nota differt quoque a Pleoravenelia. 



1. Neoravenelia Holwayi (Diet.) Long 1. c. p. 131, fig. 24, Ravenelia 

 Holwayi Diet. — Syll. XI, p. 216. — Hucusque, ut videtur, unica 

 sjmcies novi generis. 



UREDINACK/E 1NFERIORES 



PERIDERMIUM Lev. — Syll. VII p. 8:45. IX p. 326, XI pag. 222, 



XVI p. 34'.i 

 1. Peridermium Holwayi Syd. Ann. Mycol. 1903, p. 19. — Pseudo- 1350 



