364 Uredinaceae, Dictyosporpe, llavenelin. 



Hah. in foliis petiolisque Gledi tscliiae Triacantlii, Clear 

 Creek, Union Co. Am. bor. (Earle). 

 3. Ravenelia Mimosae-sensitivaj P. Henn. Hedw. 189G, p. 246. — 1282 

 Soris uredosporiferis amphigenis, sparsis vel gregariis dein con- 

 fluentibus explanatisque ochraceis; uredosporis subglobosis, ellipsoi- 

 deis vel ovoideis llavo-brunneis , dense aculeatis , 15-21*^14-18, 

 paraphysibus olavatis, subhyalinis, 25-40 «8-10; soris teleutospori- 

 feris intermixtis, irregularibus atrorufis, capitulis gregariis 70-85 u. 

 diametro subglobosis asperatis, aculeis subsubulatis obtusis, hyalino- 

 brunneolis, 5-6 a. longis, ca. 3 ^.. crassis; cystidiis hyalinis, subglo- 

 bosis, ca. 15-18 u.. diametro ; sporis (ca. 20, 8 ad marginem) sub- 

 cuneatis vel pentagonis, vertice incrassatis, brunneis vel subcinna- 

 momeis, 20-30 j. diametro; pedicellis haud conspicuis. 



Hah. in foliis Mimosae sensitivae, TLicuman Argentinae 



(LORENTZ). 



4 Ravenelia australis Diet. et Neg. Engl. .Jahrb. 1897, p. 161. — 1283 

 >Soris amphigenis, minutis, fuscis, sub epidermide erumpentibus, 

 paraphysibus intus curvatis et utricuhformibus circumdatis; ure- 

 dosporis ellipticis v. obovatis, 23-37 ^ 15-22, dilute fuscis, echinu- 

 latis, poris 4 aequatorialibus praeditis; capitulis teleutosporarum 

 hemisphasricis, e sporis simplicibus unicellularibus numerosis (in 

 omni directione 9-10) compositis, 70-125 p.. latis, levibus, casta- 

 neis; sporis ca. 12-15 u. latis, apice incrassatis; hyphis pedicellum 

 constituentibus haud conjunctis; ceiluhs cystoideis numerosis, he- 

 misphsericis, in aqua facillime diffluentibus. 



Hah. in foliis et petiolis Acaciae Cavenise pr. Concepcion 

 in Chile (Neger). 



5. Ravenelia expansa Diet. et Holw. Bot. Gaz. 1897, p. 35. — Ma- 1284 

 culis luteis, magnis; soris amphigenis, sub epidermide erumpen- 

 tibus; soris uredosporiferis minatis, ochraceis; paraphysibus nu- 

 merosis, fuscis, utriculiformibus ; uredosporis ellipticis v. giobosis, 

 17-20 '«' 15-17, luteo-fuscis, breviter echinulatis; soris teleutospo- 

 riferis irregularibus, magnis, atro-fuscis; capitulis hemisphaericis, 

 65-95 p. diam., levibus, castaneis, transverse 5-6-sporis; teleuto- 

 sporis cuneiformibus, unicellularibus, 14-18 /7.. latis, apice valde 

 incrassatis (ca. 7 u.); cystidiis piriformibus. 



Hah. in foUis Acacise Tequilanoe pr. Guadalajara in Me- 

 xico (Holway). 



6. Ravenelia Acaciae-Farnesianae P. Henn. (sub R. Mimosce P. Henn.) igss 

 Hedw. 1895, p. 95. — yEcidiis in ramulis junioribus gregariis; 



