ARTHUR: NEW SPECIES OF UREDINEAE 35 
Puccinia suffusca Holway, Jour. Myc. 8: 171. 1902. 
Polythelis Pulsatillae Arth. Résult. Sci. Congr. Bot. Vienne 341. 
1906. : 
The specific name adopted for this species under the genus 
Polythelis in the North American Flora was already preoccupied 
when the genus Polythelis was established, and should not have 
been taken up. The next older name is now substituted. A 
history of the name Puccinia Pulsatillae is given by Holway in the 
Journal of Mycology (8: 171. 1902). Kalchbrenner’s name ap- 
plies to the very dissimilar species that occurs on some of the same 
hosts and is usually listed as Puccinia DeBaryana Thiim. 
Ravenelia havanensis sp. nov. 
O. Pycnia amphigenous, petiolicolous, and on young, swollen 
shoots, thickly scattered, prominent, punctiform, hemispheric or 
subconic, smoky-brown, subcuticular, 130-250 u broad by 65-80 u 
high; hymenium flat; ostiolar filaments wanting. 
II. Uredinia of the primary form following the pycnia, scat- 
tered, of the secondary form epiphyllous and somewhat petiolicol- 
ous, in small groups or solitary, subcuticular, soon naked, 
cinnamon-brown, irregularly rounded, 0.3-0.6 mm. across, rup- 
tured cuticle noticeable; paraphyses wanting; urediniospores 
obovate-oblong, or linear-oblong, 13-18 by 26-38 w, rounded or 
acute above; wall pale- or cinnamon-brown, paler below, 1.5-2 u 
thick, sometimes a little thickened above, 2-44, sparsely and 
prominently echinulate, the pores 4, equatorial. 
Ill. Telia epiphyllous, subcuticular, in irregular groups, early 
naked, chestnut-brown, ruptured cuticle noticeable; teliospore- 
heads chestnut-brown, 4-6 célls across, oblong-hemispheric, 65-85 
by 65-70 uw across, 45-55» high, each spore bearing 4—6, straight, 
subconical, hyaline tubercles, 2-3 » long; cysts hyaline, globoid, 
small, not readily bursting in water; pedicel hyaline, very short. 
On Enterolobium cyclocarpum (Sw.) Griseb., Capdevila, 
Havana, Cuba, December 5, 1919, Il., J. R. Johnston 1195: 
same, May 10, 1920, O, Ili, J. R. Johnston 1201: same December I, 
1920, Iz on seeding plants, III on old tress, J. R. Johnston (type). 
There are two species of Ravenelia, both on Enterolobium Timbouva, 
described by Spegazzini from Argentina and Paraguay, the only 
ones known on this host genus. No mention is made of uredinia — 
in the descriptions, and the writer has not seen material. The 
Cuban species appears to be abuudantly distinct from the South 
