Uredinacea?, Dictvosporse, Ravenelia. 405 



ribus, apice incrassatis usque 6 ;x., 27-33*= 13-19; pedicello poly- 

 hyphoideo, hyalino; cystidiis globosis, hyalinis, 12-20 ;j.. diam. 



Hab. in foliis vivis Cassise goratensis in Usambara Afr. 

 or. (C. Holst). 



6. Ravenelia portoricensis Arthur Bull. Torr. Bot. 01. 1904, p. 5. 13 j 

 — Soris uredosporiferis amphigenis, circinantibus in greges circ. 



3 mm. latos, subepidermicis, pulverulentis , fulvis; uredosporis 

 ellipsoideis, 24-29 « 16-18, episporio 2,5 ;x. lato, lutoo-aurantiaco, 

 dense echinulato, poris 8, sparsis; paraphysibus nullis, teleuto- 

 sporis non visis. 



Hab. in foliis Cassioe emarginatoe, Ponce, Porto Rico 

 (A. A. Heller) Amer. 



7. Ravenelia papillifera Syd. in Ann. Mycol. I, 1903, p. 330. — Soris 1341 

 uredosporiferis amphigenis, sparsis v. irregulariter confluentibus, 

 0,5-1 mm. diam., pulverulentis, ochraceo-cinnamom< is; uredosporis 

 subglobosis vel ellipsoideis, echinulatis, dilute brunneis, 18-30 * 

 16-22, episporio ca. 2-2,5 ;x. crasso, poris germinationis numerosis 

 sparsis instructis; paraphysibus paucis, capitato-clavatis v. clava- 

 tis, hyalinis ca. 40 ;x. longis, 8-14 ;x. crassis; soris teleutospori- 

 feris amphigenis, sparsis, minutis, pulverulentis, atris; capitulis 

 teleutosporarum rotundatis, castaneo-brunneis, 75-110 \i. diam. e 

 5-7-sporis in omni directione compositis; sporis singulis papilla 

 hyalina 2-3 ;x. alta pr;editis, 14-22 ;x. diam., apice usque 5 a. 

 incrassatis; cystidiis hyalinis, globosis, pendulis, eodem numero 

 quo sporis; pedicello brevi, hyalino, deciduo composito. 



Hab. in foliis vivis Cassiae Lindheimerianne prope Austin 

 in Texas Americse bor. 



8. Ravenelia Baumiana P. Henn. in Bot. Ergebn. der Kunene Sam- L342 

 besi Expeclit. pag. 157 (1902). — Maculis flavis vel ferrugineis ; 

 soris uredosporiferis amphigenis sparsis v. aggregati^, cpidermide 

 fissa tectis, ferrugineis; uredosporis subglobosis, ellipsoidois vel 

 ovoideis, flavo-brunneis, 18-22 * 14-18, episporio minute verru- 

 coso; soris teleutosporiferis plerumqne epiphyllis orbiculariter dis- 

 positis, minutis castaneis, subpulverulentis; capitulis subglobosis. 

 90-120 ;x. diam., castaneis, echinatis e 16-20 sporis compositis ; 

 sporis polyhedricis subcutaneis, 14-20 « 14-18, aculeis capitulatis, 

 rectis vel curvulis, hyalino-fuscidulis, 7-9 v 5-6; podicello nullo ; 

 cellulis appendicularibus paucis, subglobosis vel ovoideis, hyalinis 



18 ;x. diam. 



Hab. in foliis Cassine goratensis, Humbe Afr. austr. 



