496 PROCEEDINGS OF THE AMERICAN ACADEMY. 
exserta; racemi 2-3, saepius 3, 10-13 em. longi, rhachi membranaceo- 
alato 1 mm. lato, spiculas binas in ordinibus duobus ferente, in marge 
basin versus sparse longeque ciliato, ad axis principalis junctionem 
piloso, aliter glabro marginibus et costa media et pedicellis scabris 
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; gluma prima plerumque adest, quintam partem vel etiam dimi- 
diam partem spiculae longitudine aequans, truncata vel acuminata, 
l-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 monostachyum Vasey ), 
but differs from it in the greater number of racemes [P. piloswm 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, 
Yceacos 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, Biolley, no. 9651. 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. 
PaspaLuM SCHREBERIANUM (Fliigge) Nash in No. Am. FI. 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. 
