841 



Var. vulpina (Anderss.) Hack. In DC. Monog. Phan. 6 (1889) 073; Pilger in 

 Perk, Frag. PI. Philip. (1004) 140. Anthistiria vulpina Anders*. Nov. Act. 

 (Jpsal. III. 2 (1866) 423. Anthistiria arundinacea Rolfe in Journ. Bot. 23 



(1885) 216; Vidal Phan. Cuming. Philip. (1885) 159; Rev. PI. Vase. Filip. 



(1886) 202; Ceron Cat. PI. Herb. (1892) 184. 



Philippines (1272 Cuming). Luzon, Province of Pangasinan, Rosales (262 



Merrill | May, 1002. 



Philippines and British India. 



Subsp. intermedia Hack. var. dubia Mack, in DC. Monog. Than. 6 (1889) 675. 



Philippines (1609 Cuming) fide Hackel I.e. 



Endemic. 



Tribe III. Z0ISIE.E. 



Spikelets solitary or in groups, usually 1-flowered, the flowering glume 

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



Rhachie continuous. Otherwise as in Andropogonese. 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. indira 



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 (I. inn.) o. Kuntze Rev. Gen. PI. (1891) 7S7. Anthoman- 

 thum indicium Linn. Sp. PI. (17.13) 28. Perotis latifolia Ait. Ilort. Kew. 1 

 (1780) 86; Hook. f. PI. Brit lnd. 7 (1897) OS; Rendle in Forbes & Hemsl. 

 Journ. Linn. Soc. Hot. 36 (1004) 84*; Vidal Phan. Cuming. Philip. (1886) 1.18; 

 F.-Vill. Nov. App. (1883) 313. /'. glabrata Steud. Syn. 1 (18.15) 18(i ; Miq. 

 PI. 1 ml- Bat. 3 (1859) 313; F.-Vill. Nov. App. (1883) 313. Presl Pel. Haenk. 1 

 (1830) 228. 



Philippines (1300 Cuming). 

 Tropical Asia, Africa, and Malaya. 



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

 .100; F.-Vill. Nov. App. (1883) 314; Miq. Fl. Ind. Hat. 3 (18.10) 470; Xystidium 

 maritimum Trin. Fund. Agrost. (1820) 102. I. J. ? V. barbatum Presl Rel. 

 Haenk. 1 (1830) 228; Scrilm. Pept. Mo. Pot. Card. 10 (1800) .1.1. 



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

 1005. 



Australia. 



This species is reduced by some authors to the preceding, lmt judging from 

 the material available it is sufficiently distinct. I am not sine 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 /'. latifolia=P. indica, and /'. rara. 



7 Fl. Austral. 7 (1878) .100. 



