496 PROCEEDINGS OF THE AMERICAN ACADEMY. 



exserta; racemi2-3, saepIusS, 10-13 cm. longi, rhachi membranaceo- 

 alato 1 mm. lato, spiculas binas in ordinibus duobus ferente, in margine 

 basin versus sparse longeque ciliato, ad axis principalis junctionem 

 piloso, aliter glabro marginibus et costa media et pedicellis scal)ris 

 exceptis. Spiculae turgidae, elliptici-obovatae, acutae, glabrae, 

 albo-virides saepe purpureo-coloratae, circa 2.7 mm. longae, 1.5 mm. 

 latae, aliquando 2-florae, — inferior staminifera, superior hermaphro- 

 dita; gluina prima plerumque adest, quintam partem vel etiam diini- 

 diam partem spiculae longitudine aequans, truncata vel acuminata, 

 1-nervata cum nervo scabro; gluma secunda 5-nervata, quam lemma 

 sterile brevior; lemma sterile 5-nervatum, fructus superans, ad apicem 

 incrassatum puberulumque; palea sterilis aliquando adest, indurata; 

 fructus ellipsoidalis, circa 2.2 mm. longus, 1.4 mm. latus. — Type 

 (in the Gray Herb.) and only specimen seen, pine ridge near Manatee 

 Lagoon, July 18, 1905, M. E. Peck, no. 71. P. Peckii belongs to the 

 section Monostachya and is most nearly allied to P. pilosum Lam. 

 {Panicum monostachyum HBK. not Paspalum vionostachyum Vasey), 

 but differs from it in the greater number of racemes [P. pilosum occa- 

 sionally has 2, but usually only 1], the longer less pubescent leaf-blades 

 and the thinner sterile lemma. I wish to thank Mrs. Chase for her 

 kindness in comparing the Peck specimen with the material at Wash- 

 ington and for her notes relating to its difference from other species 

 of this group. 



Paspalum pectinatum Nees, Agrost. Bras. 34 (1829). — Pine ridge, 

 Ycacos Lagoon, March 1, 1907, M. E. Peck, no. 680. Determined by 

 Mrs. Chase who states that they have (in Washington) only one North 

 American collection of this species, Costa Rica, BioUey, no. 2651. P. 

 pectinatum is a South American species. 



Paspalum pedunculatum Poir. in Lam. Encycl. Suppl. 4: 315 

 (1816). — Pine ridge near Manatee Lagoon, August 8, 1905, M. E. 

 Peck, no. 110. 



Paspalum pulchellum HBK. Nov. Gen. et Spec. 1: 90, t. 26 

 (1816).— Pine ridge near Manatee Lagoon, July 31, 1905, M. E. Peck, 

 no. 86. Previously reported from Cuba, Hispaniola, Barbados and 

 South America; new for Central America. 



Paspalltm Schreberianum (Fliigge) Nash in No. Am. Fl. 17: 190 

 (1912). — Wet pine ridge near Manatee Lagoon, July 18, 1905, M. E. 

 Peck, no. 69 a. Determined by Mrs. Chase. The specimen (in the 

 Gray Herb.) consists of two inflorescences which were tied with no. 69, 

 Paspalum Underwoodii Nash, and extends the range to Central America 

 as the former distribution was the West Indies and South America. 



