368 rredinaeeflp, Dictyospora^, Ravenelia. 



tliam., subechinatis, flavis, dein brunneis v. subatris, e 24-30 spo- 

 ris, 5-6-anguIatis compositis, aculeis vix protuberantibus, hyalinis, 

 4-8 V 3-4, interdum elongatis; sporis subcuneatis -^^ subhemisphapricis, 

 24-30 « 12-18, episporio apice valde incrassato, sa^pe 5-8 o. crasso, 

 et deinde atro; pedicello polyhyphoideo, hyalino, ca. 30 u. longo, 

 12-15 a. crasso, cellulis appendicularibus multis, subglobosis v. 

 ovoideis, hyalinis, 14-16 (x. diam. 



Hah. ad folia Cassiae Petersianse, Usambara, Africa (Stuhl- 

 mann). 



16. Ravenelia Uleana P. Henn. Hedw. 1895, p. 96. — Maculis am- 1295 

 phigenis, suborbicularibus v, confluentibus, violaceo-brunneis, ca. 

 y^,-l cm. diam. ; soris uredesporiferis sparsis intermixtis, amphi- 

 genis, rotundato-oblongis, pustulatis, dein epidermide rupta cinctis, 

 subochraceis ; uredosporis subglobosis, ellipsoideis, flavis, granulosis, 

 pedicellatis 18-26^15-24, episporio verrucoso; soris teleutospori- 

 feris gregariis, orbiculariter dispositis, interdum confluentibus, ap- 

 planato-pulvinatis, epidermide rupta velatis, pulverulentis atro- 

 violaceo-brunneis, ca. '/^-1 mm. diam. ; capitulis subglobosis v. 

 subhemisphaericis. castaneo-brunneis, levibus, ca. 60-80 u. latis, 

 45-75 fx. altis, e 12-25 sporis compositis, pedicello polyhyphoideo, 

 hyalino, usque ad 75 f/. longo, 12-15 u. crasso; teleutosporis con- 

 tinui.-:, subcuneatis, obtuse triangularibus v. 4-anguIatis, brunneis, 

 22-34 V 15-23, guttulatis, levibus, brunneis, inferne cellulis appen- 

 dicularibus cystoideis globosis v. ovoideis, hyalinis, pedicellatis, 

 15-26 V 13-23. 



Hab. in foiiis CassiaB spec. in prov. Goyaz Brasilias. (Ule). 



17. Ravenella BronQniariiaB Diet. et Holw. Bot. Gaz. 1897, p. 35. i?96 

 — Soris uredosporiferis maculis magnis circiter 5 mm. diam, lu- 

 teis insidentibus, solitariis v. confluentibus, amphigenis, cinnamo- 

 meis ; uredosporis ovatis v. globosis, 23-30 v 18-25, breviter echi- 

 nulatis, poris germinationis numerosis; paraphysibus nuUis; soris 

 teleutosporiferis maculis nullis insidentibus, atris; capitulis hemi- 

 sphsericis, 85-115 /x. diam., transv6rse 5-6-sporis, obscure casta- 

 neis, supeme dense longeque verrucosis; sporis capitulorum inte- 

 rioribus bicellularibus, 16-21 u.; cystidiis conjunctis, in pedicellum 

 compositum attenuatis. 



Hab. in foliis Brongniartise spec. , Cuernavaca, Mexico 

 (Holway). 



