362 



Separation (821 Merrill) February, 1903. Mindanao, Lake Lanao, Camp Koith- 

 ley (163 ('Iannis) February, 1906: District of Davao (262 DeVore <(• Hoover) 

 April, 1903. 



British India to southern China, Malaya, and Polynesia. 



(32) Panicum carinatum Presl Rel. ilaenk. 1 (1830) :50<); Kunth Lnum. 1 

 (1833) 112; Miq. Fl. Ind. Bat. 3 (1859) 462; F.-Vill. Nov. app. (1833) 312. 

 Scribn. Rept. Mo. Bot. Card. 10 (1899) 46. pZ. 11'. Panicum radicans Mez in 

 Perk. Frag. Fl. Philip. (I ( .h>4) I4;i; Men-, in Philip. Uourn. Sci. 1 (1906) 

 Suppl. -7. mm Retz. 



Mindoko. Puerto Galera i X'S-!s Merrill) October. l'.Hi.i. Lalaijac (4.">L Tilts 

 Mangubat) .March. 1908. Cuuon (477 Merrill) December, 1902. Rar tt.au (70 

 DeVore d Hoover) April. 1903. Palawan (826 Foxworthy) April. 1906. In 

 Nos. 1520 ami 3155 Merrill and No. 0646 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 lasiocladum. 



Endemic? 



The status of this species is very unsatisfactory, and true Panicum carinatum 

 may prove to he an exact synonym of Panicum patent Linn. Me/.'" including i" 

 Panicum radicans Retz., both the form considered above and Panicum pilipea 

 Xees et Am. Schumann and l.auterbach " certainly misinterpreted Panicum ciri- 

 natum, as they reduced to it the very different /'. pilipea Xees et Arm i /'. her- 

 maphroditum 8teud.). Scribner" gives a figure of Haenke's specimen on which 

 Panicum oarinatum l'rcsl was based, and ((insiders it to be closely allied to and 

 perhaps identical with J'anieitm radicans Retz., which by many authors is con- 

 sidered a synonym of /'. /miens Linn. The figure apparently represents a young 



stage of the Linnean species. Even if the material here referred to Panicum 

 oarinatum 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, but at the same time it is perhaps as distinct from /'. patens as is the 

 following species. 



(33) Panicum warburgii Mez in Perk. Frag. Fl. Philip. (1904) 14:;. 

 /*. patens Linn. var. parvulum Warb. 1. c. /'. patens Linn. var. warburgii Hack, 

 in herb. 



LrzoN, Province of Xucva Yiscaya, Bayombong ('MV.l Merrill) May, 1902. 



Mindanao. Lake Lanao. Camp Keithley l 2(iS Clemens) February, 1906. 



Endemic. 



The validity of this species is very doubtful, and llaekel is doubtless correct 



in reducing it to a variety of Panicum paten*. It i^ apparently only a depau- 

 perate condition of that species due to environment. 



Sect. PSEUBECHINOLAENA. 



(34) Panicum uncinatum Raddi Agrost. BraB. t IS-2.S) 41; Trin. Gram. 

 Pan. 174; Sp. Gram. Ic /. iir, : Kunth Enum. 1 (1833); Miq. LI. Ind. Bat. 3 

 (1859) 449; Hook. Fl. Brit. Ind. 7 (1897) 58. 



Mindanao, Lake Lanao. Camp Keithley ( 266 Clemens) February, 1906. 

 Tropical Asia. Malaya, and America. 



1,1 Perk. Frag. Fl. Philip. | 11)04) 14.!. 



11 Fl. Deutsch. Schutzgeb. SUdsee i 1901 | 179. 



"Rept. \!<>. Hot. Qard. 10 | 1899) 46. /*/. 11. 



