464 



CONTRIBUTIONS PEOM THE NATIONAL HEEBAEIUM, 



2. Panicum utowaaiaeuin Scribn. 



Fanicum utovjanaeum Scribn. in Millsp. Field Mus. Bot. 2: 25. 1900; Contr. U. S. 

 Nat. Herb. 15: 24. 1910. 



DISTRIBUTION. 



Open rocky soil, mostly near the coast, Cuba, Porto Rico, Guadeloujje, and Vene- 

 zuela. The type specimen from Porto Rico. 



Cuba: Triscomia, Hitchcock 141, Tracy 

 9089. Cayo Guajaba, Shofor 2830. 

 Playa Marianao, Wilson 9497. 

 Eastern Cuba, Wright 3452. 



Santo Domingo: Azua, Rose, Fitch 

 & Rv^sell 3891. 



Porto Rico : Guanica, Ilillspaugh PL 

 Utow. 702, Sintenis 3365, 3416, 

 3463, C/k5e 6520. Santa Rita, Ctee 

 6535. Laguna Guanica, CAose 6533. 

 Mona, Hess 431, 455, 457. 



Fig. 12. — Distribution of P. utowanaeum. 



Leeward Islands: Guadeloupe, Duss 3177. 

 Venezuela: Near Puerto Caballo, Pittier 6434. 



3. Panicum chapmani Vasey 



Panicum chapmani Vasey, Bull. Tor- 

 rey Club 11: 61. 1884; Contr. U. S. 

 Nat. Herb. 15: 24. 1910. 



DISTRIBUTION. 



Coral sand and shell mounds, south- 

 ern Florida and the Bahamas. The 

 type specimen from Florida. 



Bahamas: New Providence, Brit- 

 ton & Brace 401. Rose Is- 

 land, Britton & Mills paugh 

 2137. Great Exuma, Britton & Millspaugh- 3076. (All in Field Mus. 

 Herb.) 



4. Panicum ramisetum. Scribn. 



Fig. 13.— Distribution of P. chapmani. 



FiQ. 14.— Distribution of P. ramisetum. 



Panicum ramisetum Scribn. U. S. Dept. 

 Agr. Div. Agrost. Circ. 27: 9. 1900; Contr. 

 U. S. Nat. Herb. 15: 25. 1910. 



DISTRIBUTION. 



Sandy plains and prairies, southern Texas 

 and northern Mexico. The type specimen 

 from Texas. 



Coahuila: Near Diaz,^ Pringle 8323. 



^ The "Guia Postal de la Republica Mexicana" has been followed in the accent- 

 ing of Mexican geographical names. , /) ' I 9 



