LIBRAK* 



NOW ' 



NEA¥ SPECIES OF PLANTS FROM INDO-CHINA 



BY 

 ELMER D. MEERILL 



During the past two or three years Dr. A. Petelot of the Entomo- 

 logical Station at Cho-Ganh, Indo-China, has submitted, to me from 

 time to time, for identification, an extensive series of botanical speci- 

 mens. Among these a considerable number of species are represented 

 that are apparently undescribed. The present paper contains the 

 descriptions of thirteen forms which I consider to represent new 

 species, with notes on several previously described forms that are of 

 sufficient general interest to warrant brief discussion. The types of 

 the new species herein described are preserved in the Herbarium of the 

 University of California. 



GRAMINEAE 



Eremochloa Petelotii Merr. sp. nov. 



Erecta, glabra, circiter 60 cm. alta; foliis anguste lanceolatis, 

 tenuiter acuminatis, margine minutissime denticulatis, 15 ad 20 cm. 

 longis, 7 ad 9 mm. latis; ligula barbata, ciliis 2 ad 3 mm. longis; 

 inflorescentiis circiter 25 cm. longis, spicis paucis (circiter 4), 8 ad 

 10 cm. longis, 3 mm. latis ; pedicellis sterilibus 7 ad 9 mm. longis, 

 breviter stipitatis, acuminatis, glaberrimis, inflatis, in siccitate brun- 

 neis, quam spiculis sessilibus circiter bis longioribus, spiculis rudi- 

 mentariis ; rhachibus articulis 2.5 mm. longis, sursum incrassatis, 

 glaberrimis ; spiculis sessilibus 4.5 ad 5 mm. longis, oblongo-ellipticis, 

 arete adpressis; gluma I in ^ superiore parte utrinque ala obtri- 

 angulari lata margine minutissime ciliata munita, inde late rotundata 

 vel truncato-emarginata, in f inferiore parte spinis utrinque 7 ad 9 

 brevis crassis antrorse curvatis 0.5 ad 1 mm. longis instructa, partibus 

 medianis subhyalinis, tenuissime 4-nervis; gluma II lanceolata, 

 acuminata 4 mm. longa, hyalina, 3-carinata; III et IV 3 mm. longa, 

 hyalina, enervosa. 



Indo-China, Cambodia, Campong Chnang, Dr. A. Petelot 247, 

 July, 1921. In places subject to inundation. 



A species allied to Eremochloa muricata Hack., differing in its 

 J^ much larger leaves, smaller spikelets, obscurely nerved first glume, 

 <T> and the conspicuous sterile pedicels, which are about twice as long as 



3 



csi 



the sessile spikelets. 



C3 



"73 



