742 TTredinncefR, Ravenelia. 



ovoideas v. subglobosas (6-81 hyaliiias 15-18^10-15 gerentibus; 

 pedicello hyalino, breviter 2-3-liyphoideo, 5 [j.. c. cr. 



Ildb. in ramulis junioribus subilexuosis Mimosae reman- 

 soansB, Harms Bahia, Remanso Brasiliie. 



21. Ravenelia Mimosae-caeruleae Diet., Beih. Bot. Centrbl. XX, Abt. II 2810 



(1906) p. 375, tab. VI, fig. 26; Arthur, North Amer. Fl. VII 



(1907) p. 138. — Pycnidiis ignotis; uredosoris amphigenis, con- 

 fertis, quandoque circinatis, 0,3-1 mm. diam., subcuticularibus, 

 mox nudis, pallide cinnamomeo-brunneis; paraphysibus numerosis 

 iutermixtis, clavatis, 45-72 >^ 10-14, levibus, tunica 4-6 [j,. cr supra 

 cinnamomeo-brunnea infra pallidiore, stipite solido ; uredosporis 

 globosis vel late ellipsoideis 19-23 « 17-19, tunica cinnamomeo- 

 brunnea, uniformi, 1,5 [x. c. cr., moderate echinulato - verrucosa, 

 poris germinativis 8 v. pluribus sparsis pncdita; teleutosoris amphi- 

 genis. gregariis, 0,3-0,8 mm. diam., quandoque confluentibus, sub- * 

 cuticularibus, mox nudis, nigro-brunneis, nitidis; teleutosporis ca- 

 staneo-brunneis, 4-6-cellularibus, 65-80 [j,. diam , quaque spora 

 5-6 seriebus tuberculorum subhyalinorum rotundatorum v. sub- 

 acutatorum 3-5 [j,. longum prsedita; cystibus 4-6, hyalinis, udis 

 tumescentibus et disrumpentibus; pedicello brevi, hyalino, de- 

 ciduo. 



Hah. in foliis Mimosse cserulea:;, in Mexico. 



22. Ravenelia Mimosae-albidaB Diet., Beih. Centralbl. XX, Abt. II 2811 



(1906) pag. 375, tab. VI, fig. 25; Arthur, North Amer. Fl. VII 



(1907) pag. 138. — Pycnidiis ignotis; uredosoris amphigenis, nu- 

 merosis, sparsis v. circinatim dispositis, quandoque confluentibus, 

 rotundatis v oblongis, 0,4-0,8 mm. diam., subcuticularibus, mox 

 nudis pulverulentis, cinnamomeo-brunneis; paraphysibus numero- 

 sis intermixtis, spathulatis v. clavato-capitatis, 40-60 « 10-15, levi- 

 bus, tunica supra 3-5 [j.. cr., brunneo-aurata, stipite solido hya- 

 lino; uredosporis globosis v. late ellipsoideis, 21-26 '^ 15-20, tunica 

 obscure cinnamomeo-brunnea, 1,5-2,5 [j.. cr., crebre et sequaliter 

 vorrucosa, poris gorminativis 8-10 sparsis prpedita; teleutosoris 

 amphigenis, numerosis, sparsis, irregularibus, parvis, s^e.pe con- 

 fluentibus, subcuticularibus, mox nudis, nigro-brunneis, nitidis ; 

 paraphysibus nullis v. paucis immixtis; teleutosporis apice obscure 

 castan('0-l)runnois, 4-6-cellularibus, 70-90 [j.. diam , quaque spora 

 5-7 serielius tuborculorum subhyalinorum 4-7 [j.. long., pr;oditis; 

 cystibus non cohasrentibus, ovoideis, 6-8, udis tumescentibus et 

 disrnmpoiitibua; pedicello hyalino, brevi, deciduo. 



