341 



Var. vulpina (Aiiderss.) Hack, in DC. Monog. Plian. 6 (18S!)) 673; Pilger in 

 Perk. Frag. Fl. Philip. (Ifl04) 140. Anthistiria vxdpina Anderss. Nov. Act. 

 Upsal. III. 2 (1S5G) 423. Anthistiria nrundinacea Rolfe in Journ. Bot. 23 



(1885) 21G; Vidal Plian. Cuming. Philip. (1885) 159; Rev. PI. Vase. Filip. 



(1886) 292; Ceron Cat. PI. Herb. (1892) 184. 



Philippines (1272 Cuming). Luzon, Province of Pangasinan, Resales (2G2 

 Merrill) May, 1902. 



Philippines and British India. 



Subsp. intermedia Hack. var. dubia Hack, in DC. Monog. Plian. 6 (1889) 075. 



Philippines (1009 Cuminy) fide Hackel 1. c. 



Endemic. 



Tribe III. ZOISIE^. 



Spikek'ts solitary or in groups, usually l-flowored, tlio tlowering glume 

 always awnless, membranous, the empty glumes firmer, frequently awned. 

 Ehachis continuous. Otherwise as in Andropogonetp. Low grasses. 



(21) PEROTIS Ait. 



Spikelets narrow, delicate,. the empty glumes very long-awned, usually 

 standing at right angles to the axis of the long usually slender spikes. 



Species three. Tropics of the Old World, two in the Philippines. 



1. Leaves flat, 4 to 5 mm. wide : empty glumes including the awns less than 



1 cm. long (1) P. indica 



1. Leaves narrow, 1 to 2 mm. wide ; short, stiff ; empty glumes Including the 



awns about 2 cm. long (2) P. vara 



(1) Perotis indica (Linn.) (). Kuntze Rev. C4en. PI. (1891) 787. Anthoxan- 

 thum indicum Linn. Sp. PI. (1753) 28. Perotis hiiifoUa Ait. Hort. Kew. 1 

 (1789) 85; Hook. f. Fl. Brit. Ind. 7 (1897) 98; Rendle in Forbes & Hemsl. 

 Journ. Linn. Soc. Bot. 36 (1904) 343; Vidal Phan. Cuming. Philip. (1885) 158; 

 F.-Vill. Nov. App. (1883) 313. P. glahrata Steud. Syn. 1 (1855) 180; Miq. 

 Fl. Ind. Bat. 3 (1859) 313; F.-Vill. Nov. App. (1883) 313. Presl Rel. Haenk. 1 

 (1830) 228. 



Philippines (I3i)d Cuminy) . 

 Tropical Asia, Africa, and Malaya. 



(2) Perotis rara R. Br. Prodr. (1810) 172; Benth. Fl. Austral. 7 (1878) 

 509; F.-Vill. Nov. App. (1883) 314; Miq. Fl. Ind. Bat. 3 (1859) 479; Xystidium 

 maritimum Trin. Fimd. Agrost. (1820) 102. t. 2. ? J. larbattm Presl Rel. 

 Haenk. 1 (1830) 228; Scribn. Rept. Mo. Bot. Gard. 10 (1899) 55. 



Luzon, District of Lepanto, Suyoc to Cervantes (4447 Merrill) November, 

 1905. 



Australia. 



This species is reduced by some authors to the preceding. l>ut judging from 

 the material available it is sufficiently distinct. I am not sure of the correctness 

 of the reference of Xystidium maritimum Trin., to the present species, as I have 

 not been able to consult Triniu's Fundamenta Agrostographiae, where the species 

 is described. Bentham' states that the Philippine form (Xystidium maritimum) 

 appears to be intermediate between P. latifolia=P. indica, and P. rara. 



■Fl. Austral. 7 (1878) .509. 



