118 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
21. RAVENELIA HUMPHREYANA P. Henn. Hedwigia 37: 278. 1898. 
Ravenelia pulcherrima Arth. Bot. Gaz. 39: 395. 1905. 
ON CAESALPINIACEAE (CASSIACEAE): 
Caesalpinia bahamensis Lam. (C. Rugeliana Urban), Santa 
Clara to Loma Cruz (Prov. Santa Clara), March 22, 
1911, II, Britton, Britton & Cowell 10225 (host no. 10224). 
Poinciana pulcherrima L. (Caesalpinia pulcherrima Sw.), 
Holguin (Prov. Oriente), March 17, 1903, II, III, Hol- 
way; Soledad (Prov. Santa Clara), Nov. 4, 1915, Il, 
Johnston 221; Santiago de las Vegas, Хоу. 3, 1917, П, 
Johnston 950. 
The руспіа for this species have not yet been found. Туре 
collection for the species came from Mexico. The species is 
known also from Jamaica and Guatemala. The first host named 
is a new one. 
22. Ravenelia cubensis sp. nov. 
ON CAESALPINIACEAE: | 
Cassia robinaefolia Benth., Cacocum (Prov. Oriente), 
April 6, 1916, Johnston 531. 
Uredinia amphigenous, scattered or somewhat grouped, round, 
0.2-І mm. across, subepidermal, rather tardily naked, cinnamon- 
brown, pulverulent, ruptured epidermis conspicuous; paraphyses 
none; urediniospores ellipsoid or obovoid, 16-19 by 23-264; wall 
golden- or light cinnamon-brown, rather thin, 1-2и, thicker at 
apex, 3-би, moderately and finely echinulate, the pores 4, equa- 
torial. 
Telia unknown. 
This rust is so evidently a Ravenelia, that it is unhesitatingly 
described as such, although no telia are yet known. 
23. RAVENELIA PORTORICENSIS Arth. Bull. Torrey Club 31: 5. 
1904. 
ON CAESALPINIACEAE: 
Cassia emarginata. L., without locality or date, II, Charles 
Wright 480; Santiago de Cuba (Prov. Oriente), March 6, 
1903, II, Holway; same, April 30, 1916, II, Johnston 683. 
Heretofore this rust has been known chiefly from Porto Rico. 
One collection is recorded from Jamaica, and Mr. Percy Wilson 
has communicated two specimens found in the phanerogamic her- 
