Uredinacese, Dictyosporse, Ravenelia. 403 



punctiformibus, non connuentibus, e compactiusculo demum sub- 

 pulverulentis, flavo-brunneis; teleutosporis radiatim 3-cellularibus, 

 levibus, pallide flavo-brunneis, totis 38-58 « 27-38, quaque cellula 

 ca. 28-38 « 14-22, membrana tenui, apice non incrassata, cellula 

 apicali epedicellata, duabus basalibus pedicello communi hyalino, 

 apice crassiusculo deorsum attenuato 30-50 ;j.. longo sufFultis; po- 

 ris germinationis ad apicem v. juxta apicem cujusque cellulse sitis. 

 Hab. in foliis vivis Derridis uliginosae, Tanga in Africa 

 trop. (Hetnsen) et in insula Nossi-Be (Hildebrandt). 

 2. Hapalophragmium setulosum (Pat.) Syd. in Ann. mycol. 1904, p. 350. 

 Ita vocandum, teste cl. Sydow 1. c, THpliragmiwm setulosum Pat. 

 — Syll. IX, p. 318 — ex eo quod articuli basalcs teloutosporarum 

 sint bini nec singulus et sori valde compacti. 



Sect. 4. Dictyosporae. 



RAVENELIA Berk. — Syll. VII p. 770, IX p. 318, XI p. 210, XIV 

 p. 363, XVI p. 323 *). 



1. Ravenelia siliquae Long, Bot. Gaz. 1903, p. 118, fig. 7. Soris [335 

 subcutaneo-erumpentibus ; uredosoris orbicularibus, amplis, 1-4 

 mm., diam., cinnamomeo-brunneis, epidermide rupta elevata cin- 

 ctis, sparsis vel plus minus connuentibus ; uredosporis fulvis, epi- 

 sporio dense verrucoso, oblongo-ovoideis v. ovato-fusoideis, 20- 



33 « 13-17, soepius 30 v 16, poris germ. 8, in binas sories juxta 

 sequatorem quaternatis ; paraphysibus rarissimis, clavatis, 43 * 7, 

 hyalinis, apice fulvellis. 



Hab. in leguminibus Acacia^ Farnesianm. Etla, Oaxaca 

 Mexico (Holway). — Teleutospor;i> nullse visa3. Cl. Long lcgumen 

 Acacioe pro siliqua habet! 



2. Ravenelia fragrans Long, Bot. Gaz. 1903, p. 123, fig. 14. — Ure- 1336 

 dosoris subcutaneo-erumpentibus, primariis typice dense confluen- 

 tibus foliaque ramulosque inflantibus, secundariis subsparsis vel 

 connuentibus, fulvis; uredosporis crasse tunicatis, sporis primariis 

 angulosis, ultimis ovoicleo-globosis, dense spinulosis, 17-23 « 13-17, 



*) Cfr. illustratiouem hujus generis icouibus dilucidatam, cl. W. 1T. Long, 

 in Bot. Gaz. 1903, p. 111-133 (ad species boreali-americanas). 



