862 
Separation (821 Merrill) Fel)niary, 1903. Mindanao, Lake Lanao, Camp Keitli- 
ley (153 Clemens) February, 190(1: District of Davao (252 DeYore <6 Hoover) 
April, 1903. 
British India to southern China, Malaya, and Polynesia. 
(32) Panicum carinatum Presl Bel. Haenk. 1 (1830) 309r Kunth Enuni. 1 
(1833) 112; Miq. FI. Ind. Bat. 3 (1859) 452; F.-Vill. Nov. App. (1833) 312. 
Seribn. Kept. Mo. Bot. Card. 10 (1899) 46. fl. 17. Panicum radicans Mez in 
Perk. Frag. FI. Philip. (1904) 143; Merr. in Philip. Journ. Sci. 1 (190C) 
Suppl. 27, non Betz. 
Mindoro, Puerto Galera (3328 Merrill) October, 1903. Balabac (451, 516 
Mangiihat) March, 1906. Cui.iON (477 Merrill) December, 1902. Basilan (70 
DeVore if- Hoover) April, 1903. Palawan (826 Foxworiliy) April, 1906. In 
Nos. 1520 and 3155 Merrill and No. 6646 Elmer, from the Province of Bataan. 
Luzon, the panicle branches and rhachis are supplied with few long white hairs, 
and Hackel proposes to call this forma lasiocludum. 
Endemic ? 
The status of this species is very unsatisfactory, and true Panicum curinaium 
may prove to be an exact synonym of Panicum -patens Linn. IMez'" including in 
Panicum radicans Betz., both the form considered above and Panicum pilipes 
Nees et Arn. Schumann and Lauterbach^^ certainly misinterpreted Panicum curi- 
natum, as they reduced to it the very difl'erent P. pilipes Nees et Arn. (P. her- 
maphroditum ^teud.). Scribner'- gives a figure of Haenke’s specimen on which 
Panicum. carinatum Presl was based, and considers it to be closely allied to and 
perhaps identical with Panicum radicans Betz., which by many authors is con- 
sidered a synonym of P. po.tens Linn. The figure apparently represents a young 
stage of the Linnean species. Even if the material here referred to Panicum 
carinatum is correctly identified, it can not be distinguished from Panicum 
patens Linn., except by some minor characters, such as the smaller size of the 
panicle, hut at the same time it is perhaps as distinct from P. pjatens as is the 
following species. 
(33) Panicum warburgii Mez in Perk. Frag. FI. Philip. (1904) 143. 
P. patens Linn. var. parvulum Warb. 1. c. P. patens Linn. var. warhurgii Hack, 
in herb. 
Luzon, Province of Nueva Viseaya, Bayombong (303 Merrill) Majq 1902. 
Mindanao, Lake Lanao, Camp Keithley (268 Clemens) February, 1906. 
Endemic.* 
The validity of this species is very doubtful, and Ilackel is doubtless correct 
in reducing it to a variety of Panicum patens. It is apparently only a depau- 
perate condition of that species due to environment. 
Sect. Pseudechinolaena. 
(34) Panicum uncinatum Baddi Agrost. Bras. (1823) 41; Trin. Gram. 
Pan. 174; Sp. Gram. Ic. t. 216; Kunth Enum. 1 (1833); Miq. FI. Ind. Bat. 3 
(1859) 449; Hook. FI. Brit. Ind. 7 (1897) 58. 
Mindanao, Lake Lanao, Camp Keithley (266 Clemens) February, 1906. 
Tropical Asia, Malaya, and America. 
“ Perk. Frag. FI. Philip. (1904) 143. 
“FI. Deutsch. Schutzgeb. Siidsee (1901) 179. 
Pept. Mo. Hot. (lard. 10 (189!)) 46. pi. 17. 
