Uredinaceee, Didymosporfe, Diorchidium. 359 



sporiferis atro-fuscis, pulvinatis; teleutosporis leniter constrictis, 

 utrinque rotundatis, 35-47 v 24-28, episporio castaneo, involucro 

 liyalino et verrucoso, 2-2'/, u . crasso, quaque cellula poris germi- 

 nationis 2 instructaj pedicello hyalino, spora duplo breviore, in 

 aqua usque ad 18 u.. crasso. 



Hab. in foliis vivis Daleae spec. duobus locis in Mexico 

 (Holway). 



2. Uropyxis Eysenhardtlas Diet. et Holw. Bot. Gaz. 1897, p. 27. — 1266 

 Maculis luteolis v. nullis; soris uredosporiferis punctiformibus, liy- 

 pophyllis, sparsis; soris uredosporiferis albicantibus, paraphysibus 

 curvatis atque hyalinis circumscriptis ; uredosporis late ellipticis v. 

 globosis, 15-20 « 15-17, paJlide brunneis, ecliinulatis; soris teleuto- 

 sporiferis atro-fuscis; teleutosporis utrinque rotundatis, leniter con- 

 strictis, 38-45 =s= 25-28, castaneis, involucro tenui, verrucoso, hyali- 



no, quaque cellula poris germinationis 2 instructa ; pediceUo plerum- 

 que globoso, 15-18 y. diam., hyalino. 



Hab. in foliis vivis Eysenhardties orthocarpEe pr. Me- 

 xico (Holway). 



3. Uropyxis Nissoliae Diet. et Holw. Bot. G-az. 1897, p. 27. — Ure- i267 

 dosporis non visis; soris teleutosporiferis plerumque hypophyllis, 

 sparsis, minutis v. media magnitudine, atro-fuscis, pulverulentis; 

 teleutosporis utrinque rotundatis, leniter constrictis, 32-40 « 25-27; 

 membrana castanea, involucro hyalino, verrucoso, 1-2 a. crasso, 

 quaque cellula poris germinationis 2 instructa; pedicello hyalino, 

 usque ad 25 u. longo et 5-6 a. crasso. 



Hab. in foliis Nissolise confertiflorse pr. Guadalajara in 

 Mexico (Holway). 



DIOfiCHIOIUM Kalchbr. — Syll. YII, p. 736, IX, p. 314. 



1. Diorchiciium australe Speg. Contr. Fl. Sierra Ventana, 1896, p.-83. 126§ 

 — Soris minutis, matrice incrassatula atque pkis minusve deformata 

 densissime insidentibus, atro-cinnamomeis subpulvei-ulentis; teleuto- 

 sporis e cellulis duabus globosis (20-22 v 18-22) v. ovatis latera- 

 hter junotis, 28-35 -^ 20-22, obscure fuligineo-cinnamomeis, epispo- 

 rio crassiusculo minutissime densissimeque asperulo-papilloso vesti- 

 tis, grosse 1-guttulatis efformatis, pedicellis tenuibus elongatis, 

 20^4, hyahnis, apice minute bilobo-incrassatis fultis. 



Hab. in ramulis tenellis et inflorescentia Mimosae Rocge, 

 Sierra de la Yentana, Argentina. 



2. Diorchidium goyazense P. Henn. Hedw. 1895, p. 94. — Maculis 1259 



