494 PROCEEDINGS OF THE AMERICAN ACADEMY. 
ANDROPOGON SPATHIFLORUS (Nees) Kunth, Enum. Pl. 1: 496 
(1833).— Low pine ridge near Manatee Lagoon, June 21, 1905, M. E. 
Peck, no. 54. 
ANDROPOGON vircInicus L. Sp. Pl. 2: 1046 (1753).— Pine ridge 
near Manatee Lagoon, September 27, 1905, M. E. Peck, no. 150. 
ARUNDINELLA Deppreana Nees ex Steud. Syn. Pl. Gram. 115 (1854). 
— Thicket near Manatee Lagoon, February 28, 1906, M. E. Peck, 
no. 359; river bank, Moho R., March 16, 1907, M. E. Peck, no. 735. 
This species may not be distinct from A. peruviana (Presl) Steud. 1. ¢. 
as affirmed by Nash in No. Am. Fl. 17: 143 (1912), but from the 
material in the Gray Herbarium it seems to be distinct. 
LeprocorypHium LANATUM (HBK.) Nees, Agrost. Bras. 84 (1829). 
— Pine ridge near Manatee Lagoon, August 30, 1905, M. E. Peck, 
no. 137. 
DiGiraRta SETIGERA Roth ex R. & S. Syst. Veg. 2: 474 (1817). D. 
setosa Desy. ex Hamilt. Prodr. Pl. Ind. Oce. 6 (1825). Syntherisma 
digitatum (Sw.) Hitche. Contr. U: S. Nat. Herb. 12: 142 (1908) 
based on Milium digitatum Sw. Prodr. Veg. Ind. Oce. 24 (1788) not 
D. digitata Buese in Miq. Pl. Jungh. 381 (1855).— Cultivated ground 
near Manatee Lagoon, June 18, 1905, M. E. Peck, no. 44. 
THRASYA CAMPYLOSTACHYA (Hack.) Chase in Proc. Biol. Soc. Wash. 
24: 115 (1911). Panicum campylostachyum Hack. in Oesterr. Bot. 
Zeitschr. 51: 367 (1901).— Pine ridge near Manatee Lagoon, June 18, 
1905, M. E. Peck, no. 70. This interesting species originally described 
from Costa Rica seems to be limited in its distribution to the southern 
portion of Central America. The determination was kindly verified 
by Mrs. Chase, Assistant Agrostologist of the Bureau of Plant Industry. 
Mesosetum filifolium, sp. nov. Culmi caespitosi, basin versus @ 
vaginis multis arcte imbricatis obtecti, erecti, tenues, 35-70 cm. alti- 
tudine, inflorescentiam versus puberuli aliter nodis breviter hispido- 
barbatis exceptis glabri. Vaginae radicales squamiformes, tumidius- 
culae, hispidae, abrupte ad folii junctionem contractae babulataeque; 
eae culmarum elongatae sed internodio breviores, glabrae, in laminas 
gradatim transeuntes. Ligula barbulata, circa 0.5 mm. longa. Folia 
erecta, setaceo-filiformis, basin versus conduplicata, 7-28 em. longa, 
0.5 mm. lata, glabra, ea culmarum reducta, supremum saepe vix 1 em. 
longum. Inflorescentia erecta, 4-7 cm. longa, 5 mm. diametro; aX! 
flexuosus fere capillaris, excavationi non ostendentius, puberulus 
vel scaber; pedicellum breve, hispidum. Spiculae patenti-erectae, 
lineari-oblongae, apicem versus tenebrae, albido-villosae, 5 mm. longae, 
1.5 mm. latae; gluma prima quam secunda brevior vel eam subaequans, 
