794 Urodiuales, Piicciniaceic, Pucciuiete, Ravenelia. 



tatis, ;>.")-r)7 * 10-13, apice fulvis ceteiiim subbyaliiiiis, tuuica 2-3 |jl 

 cr. raro apice crassiore, sti])ite attenuato byalino 2-4 fx cr. 20-40 [Jt 

 longo; uredosporis obovatis, piriforiuibus vel ovoideis, 20-27 * 16-18, 

 episporio 1,5-2 |i crasso, interduiu basi tenuiter incrassato dense 

 verrucoso, ciunamoineo-brunueo, concolori, poris 8-12 in duas series 

 transversas linea aequatoriali aequidistautibns dispositis ; telento- 

 soris amphigenis et caulicolis, nredosoris similibus, castaneo-brun- 

 neis ; telentosporis concoloribus, capitulo 70-90 jji diam. e celhilis 

 8-14 uiarginalibus levibus composito, paraphysatis, stipite aeqnali 

 tirmo ; cystis gracilibus, copiosis iu parte inferiore capitulorum, bi- 

 seriatis, subadpressis, in aqua mox inflantibus et disrumpentibus; 

 l)edicello brevi, byalino, deciduo. 



Hah. in A c a c i a c o n s t r i c t a , var. p a n c i s p i n a , El 

 Paso Texas et Tucson Arizona, in Amer. bor. — Affinis R. versatili 

 et Prof. Thortsbeti dicata. 



4. RavenelJa formosana Syd., Mon. Ured. III p. 245 (1914)- — Ure- 2793 

 dosoris epiphyllis, sparsis, subcnticnlaribus, minntis, ^/^ mm. diam., 

 mox erumpentibus, epidermide rupta cinctis, ferrugineis ; nredo- 

 sporis ovatis v. piriformibus ant oblongis, dense ininuteque echi- 

 nulatis (praecipue ad apicem), flavo-brunneis, 21-32 «11-15, epi- 

 sporio 1,5^ cr., poris germ. 4-6 aeqnatorialibus instructis ; para- 

 pliysibus numerosis, cylindraceis, plerumque valde irregulariterque 

 curvatis, brunneis, 35-60*9-15, membrana 2-3!icr. ; teleutosporis 

 adhuc ignotis. 



Hab. in foliis A c a c ia e F a r n e s i a n a e, Eusuiko, Formosa, 

 Asia (K. Sawada). 



5. Ravenelia natalensis H. et P. Syd. et Evans in H. et P. Syd., Ann. 2794 

 Mycol. X, 1912, p. 438, cnm icon. — Sydow, Ured. III p. 245. — 

 Aecidiis ramicolis, tumores crassos 1-2 cm. diam. in ramulis jn- 

 nioribus ortis efformantibus et superflciem tumorum dense abtegen- 

 tibns, breviter cylindraceis, flavis v. flavo-brunneolis, margine den 

 ticulato ; aecidiosporis subglobosis v. ellipsoideis, dense miuuteqne 

 verruculosis, 24-30^18-22, episporio circ. 3 [i- cr. ; uredosoris ra- 

 micolis, subepidermicis, dense gregariis confluentibusqne, plagulas 

 longe lateque efifusas ramos ambientes molliusculas efformantibns, 

 ferrngineis ; uredosporis ovoideis v. ellipsoideis, remote aculeatis, 

 flavis usque brunneis, 20-29*17-22, episporio 3-3,5 fi cr. ; poris 

 germ. 4 aequatorialibus instructis ; paraphysibus nullis ; teleuto- 



' soris conformibus, atro-brunneis, capitulis teleutosporarum iiemi- 

 sphaericis, ambitu orbicularibus, suborbicularibus v. irregularibus, 



