329 



Var. intermedia Hack, in Philip. Journ. Sci. 1 (1000) Suppl. 265. 



Luzon, Province of Benguet, Bugias (4(i(i7 Merrill) October, 1903; Twin 

 Peaks (6393 Elmer) May, 1904. 



{Rottbucllia myurus L. is reported from the Philippines by Oeron, Cat. PI. 

 Herb. (1892) 181, 1 >»i t the identification was evidently erroneous.) 



(13) MANISURIS S\v. 



A rather slender much branched annual, the leaves cordate at the base. 

 Sessile spikelets t-flowered, hollow-globose, pitted externally; pedicellate 

 spikelets flat, stiminate or neuter, their pedicels grown to the rhachis. 



A monotypic genus; a weed in all tropical countries. 



(1) Manisuris granulans Linn. f. Nov. Gram. Gen. (177!)) .'57. f. 4-7; Miq. 

 PI. Ind. Bat. 3 (1869) 40!): F.-Vill. Nov. A])!). (1883) 314; Hack, in DC. 

 Monog. Plum. 6 (1889) 314; Hook. f. Fl. Brit, Ind. 7 (1897) 169; Reudle in 

 Forbes & Hemsl. .lourn. Linn. Soc. Hot. 36 (1904) 363; Merr. in Philip. Journ. 

 Sci. 1 (1906) Suppl. -ill. Hackelochloa granulans 0. Kuntzc Rev. (Jen. (1891) 

 77(1. 



LUZON, Province of Batumi, Lamao River (3094 Merrill) October. 1903: Prov- 

 ince of Laguna, Los Bafioe (Hallier) December. 1003: District of Lepanto. Cer- 

 v:'.ites (4470 Merrill) November. 1905: Province of Rizal, Morong (1400 Ramos) 

 August, 1906. Mindanao, Lake Lanao, Camp Keitbley (Clemens) April, 1906; 

 Davao (Oopeland) March, 1004. Palmas ( 5:557 Merrill) October. 1906. 



Tropics of the World. 



(14) OPHIURUS Gaertn. f. 



Annual or perennial. Spikes solitary or fascicled; lateral spikelets 

 absent or rudimentary and their pedicels grown to the rhachis; sessile 

 spikelets 1-flowered. 



Species two, tropical Asia, Africa, and Malaya, both in the Philippines. 



1. Spikes 5 to 12, corymbose-fasciculate ; spikelets 2-flowered (1) O. exaltatus 



1. Spikes solitary; spikelets 1-flowered (2) O. monostachyus 



(1) Ophiurus exaltatus (Linn.) 0. Kuntze Rev. Gen. PL (1801) 780. 

 Aegilops exalt ata Linn. Mant. 2 11771) app. 57.1. Ophiurus corymbosus Gaertn. 

 f. Fruct, 3 (1805-07) 4. /. 181. f. a.: F.-Vill. Nov. App. (1883) 1514; Hook. f. 

 Fl. Brit. Ind. 7 (1807) 100; Pilger in Perk. Frag. Fl. Philip. (1004) 13S. 

 Rottboellia oorymbosa Linn. f. Suppl. (1781) 114. 



Luzon, Province of Nueva Vizcaya, Bagabag (121 Merrill, in part) in herb. 

 Berol., fide Pilger 1. c. 



British India and north Australia. 



(2) Ophiurus monostachyus Presl Rel. Haenk. 1 (1830) 330; Kunth Enum. 

 1 (1833) 404; Miq. Fl. Ind. Bat. 3 (1850) 405: F.-Vill. Nov. App. (1883) 

 :514; Vidal Rev. PL Vase. Filip. (1880) 290; Plian. Cuming. Philip. (1885) 158; 

 Hack, in DC. Monog. Phan. 6 (188!)) 318; Rendle in Forbes & Hemsl. Journ. 

 Linn. Soc 36 (1004) 362. 0. undatus Nees in Hook. Kew Card. Misc. 2 (1850) 

 100. 0. undulatus Miq. Fl. Ind. Bat. 3 (1850) 405. 



Philippines (1339 Cuming). Luzon, Manila (3 Soribner) June, 1002. Min- 

 danao, Lake Lanao, Camp Keitbley (150 Clemens) February, 1906. 

 Hongkong, Formosa, and Tonkin. 



