180 Prof. Nees on some New Genera of Indian Grasses, 



to place some funds at the disposal of Dr Wight, in order \o 

 enable hiin to extend and complete his important researches. 

 . We are informed in the preface that the second volume will 

 be enriched by some valuable contributions. Professor De 

 CandoUe has named the greater part of the Compositce, and 

 communicated notes on the new species. Professor Nees von 

 Esenbeck aftbrds his assistance in the AcanthacecB, Laurinea, 

 Solanccc, Cyperacece, and Graminece. Mr Bentham describes 

 the Lablata and Scrophidarince ; Dr Lindley the Orchidea ; 

 Dr Hooker the Filkes, and De Greville the Algts. 



Neio Genei'a of Indian Grasses. By Prof. Ch. G. Neks ab 

 Esenbeck. (Communicated by G. A. Walker-Arnott, 

 Esq.) 



I. THYSANOL^NA. N. ab E. 



Trib. TRISTEGINEiE. 



Spiculoe hemiologamae, heterogamie, racemosae, geminse, vel solitariae. 

 Glunife duae, flosculis minores, muticae ; inferior brevior. Flosculus inferior 

 neuter, univalvis ; valvula herbacea, glabra, integra, mutica ; superior her- 

 maphrofiitus, bivalvis : valvula inferior herbaceo-membranacea, mutica, tri- 

 nervis, jonge ciliata; superior minor et angustior, lineari-lanceolata, mem- 

 branacea. Ijodiculre exiguae, rotundatae, integerrimae. Stamina duo, antheris 

 linearibus latiusculis luteis. Stigmata purpurea, penicillata ; styli basi con- 

 junct!. 



Inflorescentia : racemus amplus, supra decompositus, ramis muUis elongatisfili- 

 formibus basi callosis sparsis apprommatis, ramulis brevibus oUgostachyis. Planta 

 alia. Folia lata, rigida, glabra. Spiculae valde parvcB. 



1. Th. agrostis (N. ab E.) — Agrostis maxima, Rojeb. ft. Ind. 1. p. 317 {ed. 

 Wall.) I. p. 319; in cat. mere, aiigl. Ind. or. mus. tab. 823 (fide Arnott); Kunth. 

 en. \. p. 227. 



Hab. in montihus Circarensibus ; Roxburgh. In Benghala boreali, liogle, 

 n. 284. 



II. BATRATHERUM. N: ab E. 



Trib. SaccharinejE. § Andropogoneje. 



Spicula in rachi articulata geminatae, heterogamae, altera sessili hemigama, 

 altera pedicellata neutra. Glumae spiculae perfectiB duae, subaequales, herba- 

 ceo-chartaceae, acutae apiceve acute bidentatae, in aliis superior apice setacea, 

 inferior plana bi-sex-nervis, superior carinata, complicata, uni-trinervis, a 

 dorso implicata canalem struens, in quo seta flosculi contirietur, margine tenui 

 simpliciter connivente. Flosculi membranacei, glumis breviores, nunquam 

 saltern longiores ; inferior neuter, univalvis, muticus ; superior bivalvis, val- 

 vula inferiori acuminata apice minute, bidentata prope a basi emittente setam 

 in medio geniculatam tortam ; superior exigua, lineari-subulata, bidentata' 



