Uredinacese, Ravenelia. 12H 



1-1,5 jx. cr., depresse et sparse ecliinulata, poris germinativis 6-10 

 sparsis praedita; teleutosoris plerumque caulicolis, numerosis, spar- 

 sis, Scepe confertis confluentibusque, subepidermicis, mox nudis, 

 nigricantibus, nitidis; teleutosporis apice theobromino-brunneis, 

 4-8-celIularibus, 90-120 ;j.. diam., levibus; cy&tibus hyalinis, latis, 

 pendulis et in pedicellum decurrentibus, udis tumescentibus et 

 disrumpentibus; pedicello hyalino, persistenti, 45-90 |j.. longo. 



Hab. in foliis caulibusque Craccae cinerese, Bahamas A- 

 mer. bor. 



6. Ravenelia Ingae (P. Henn.) Arthur, North Amer. Fl. YII (1907) 2795 

 p. 132. Teste hoc auctore Uredo Ingcv P. Henn. — Syll. XVI, 



p. 352 — et Uredo excipidata Syd. — Syll. XVII, pag. 447 — 

 sunt habendie ut status uredosporiferi Ravenelice specierum, qua- 

 rum tamen st. teleutosporifer nondum innotuit. 



Hab. in foliis Ingse verte et Ingie Inicuil, in ludiis 

 occid. Mexico et Amer. australi, 



7. Ravenelia pulcherrima Arthur, Bot. Gaz. vol. XXXIX (1905; 2796 

 p. 395. — Uredosoris amphigenis, subconfertis v. sparsis, rotun- 

 datis, sparsis, 0,25-0,5 mm. diam., mox nudis, cinnamomeo-brun- 

 neis, paraphysibus numerosis intermixtis; uredosporis ellipsoideis 



V. oblongo-sphccroideis, 15-18 =* 17-24, tanica tenui 1,5-2 [i. crassa, 

 pallide flavo-aurata, minute et crebre echinulato-verrucosa, poris 

 germinativis 6-8, sparsis, parapbysibus crassis capitatis spathulatis, 

 35-55 « 12-18, levibus, tunica tenui subhyalina, supra 3-10 [j-. cr., 

 castaneo-brunnea; teleutosoris amphigenis, parvis, sparsis v. con- 

 fluentibus, subcuticularibus, nigro-brunneis ; capitulis brunneo-theo- 

 brominis 6-7-ceIlularibus, 75-100 [i. diam., quaque spora 4-5 pa- 

 pillulis vix conspicuis, 1-2 [x. altis, subhyalinis pnedita; cystibus 

 adpressis in inferiori parte capituli, paraphysibus nullis; pedicello 

 brevi, hyalino deciduo. 



Hab. in foliis Poincian?e pulcherrimae, Mexico. 



8. Ravenelia Piscidiae Long, Journ. of Mycol. XII (1906) p. 234; 2797 

 Arthur, North Amer. FI. VII (1907) p. 144. — Pycnidiis ignotis; 

 uredosoris amphigenis, parvis, usque 1 mm. diam. subepidermicis, 

 pulveraceis, pallide cinnamomeo-brunneis; paraphysibus paucis in- 

 termixtis, cylindraceis, quandoque supra incurvatis 30-50 « 10-12, 

 tunica levi, icqualiter crassa, supra castaneo-brunnea infra pallida; 

 uredosporis ellipsoideis 17-29* 15-17; tunica pallide ciunamomeo- 

 brunnea, tenui, 1-1,5 [j.. cr., minute et crebre echinulata, poris 

 germinativis 7-10 sparsis pnedita; teleutosoris amphigenis, minu- 



,Syll. /ung. XXI (I-1912J 47 



