A^D LITTLE-KNOWN 



65 



Isa.chne Matjkitiana, Kunth, var. hispidula (differt a typica 



gluinis sterilibus superne hispidulis). 

 Port Dauphin, 2813 ! 



Pennisetum Alopecttros, Steud. 



I cannot distinguish this specifically from the East-Indian type, 



though the latter is more robust*. 



Canal-bauks near Antananarivo, 1730 ! 1731 ! 



Sporobolus sxjbulatus, sp. n. 



Differt a proximo Sp. fimbriato, Nees, paniculae ramis basibre- 

 viter nudis, spiculis fere duplo majoribus (3*5-4 mm. longis), 

 fere subulato-lanceolatis, gluma sterili interiore lineari spiculae 



f— | subaequante. 



Dry gneiss hills of Betsileo, alluvium Vaingaindrano, 2034 ! 



226013052! 



Agkostis Elliotii, sp. n. 



A. foliis linearibus planis acumiuatis supra scabris, ligula ob- 

 longa truncata, panicula lineari-coarctata densissima subinter- 

 rupta vaginata, ramis appressis a basi floriferis, spiculis imbricatis 

 subsessilibus 4 mm. longis, lineari-lanceolatis pallide viridibus ; 

 gluinis sterilibus subsequalibus, lineari-lanceolatis rigidulis, sca- 

 berrimis, lma acuta, 2da infra apicem mucronulata, gluma flori- 

 fera sterilibus paullo breviore, hyalina, bimucronulata, glabra, 

 supra basin exserens aristam subuliformem supra medium genicu- 

 latam gluinas non superantem. Palea nulla. 



Remote affinis A. hygrometricce, Nees, quae differt paniculra 

 ramis 3nis-5nis, gluma 2da non mucronulata, floriferse arista 

 quam gluma duplo longiore valde torta. 



Ankaratra Mountains, also Fort Dauphin, 2090 ! 2921 ! 



■ 



Trichoptertx stipoides. Hack., = Arundinella stipoides, 

 Hack., =Stipa madagascariensis, Baker. 

 Manandona valley, 2003 ! 



Centotheca, subgen. Megastachya. 



(Megastachya, Beauv. Agrostogr., non aliorum.) 



Differt a Centotheca propria spiculis multifloris, glumis fertili- 

 bus apice plus minus emarginatis ex emarginatura saepius mucro- 

 nulatis. {Conf. Benth. et Hook. f. Gen. Plant, iii. p. 1190.) 



* This form = P. triticoidcs, Baker, Journ. Linn. Soc. xxi. p. 453. — G. F. S. E. 



LIK>\ JOUfiX. — BOTAXT, VOL. XXIX. P 



