Tabula 2826. 



CYMBOPOGON CITKATUS, Staff. 



Gramineae. Tribus Andropogoneae. 



C. citratus, Stapf in Kew Bull. 1906, p. 357 ; affinis C. Nardo, Reiidle, 

 sed panicula laxiore, spiculis angustioribus linearibus vel lineari- 

 lanceolatis, gluma inferiore basin versus in dorso distincte concava 

 di versa. 



Herha perennis. Tthizoma breve, parce ramosum, vix ultra 0-75 cm. 

 crassum, obliquuui, annulatim cicatrosum, durum, aromaticum, 

 fascicules foliorum densissimos ex apice ramorum et axis primariae 

 emittens. Folia aroniatica, dcnsissime aggrogata, basi Bese amplec- 

 tentia ; vaginae basi dilatatae, superne angustae et solutae, subcoriaccae, 

 glabrae, 10-30 cm. longae ; ligulae scariosae, perbreves, rotundatae ; 

 laminae lineares, apicem versus longe tonuissirae attenuatae, basi 

 magis minusve angustatae, ad 1 m. longae, 6~10 mm. latao, longe 

 eleganter recurvatae, glauco-virides, ad junctionem cum vagina arti- 



culatae et exsiccando nigricantes, margine et superne subtus asperae, 

 costa basi admodum dilatata crassa albida. Panicula decomposita, 

 laxa, 30-50 cm. longa, nutans ; rami inaequales, majores ad 15 cm. 

 vel ultra longi internodiis intermediis 2-5-3-5 cm. longis gracilibus ; 

 spathae propriae perangustae, acutae, 2-2-5 cm. longae, rubescentes 

 vel fuscescentes, Racenii lateraliter exserti, r5-2'5 cm. lougi, 3-4- 

 articulati ; articuli pedicellique consimiles, graciles, 2-2-5 mm. longi, 

 ad latera scriceo-ciliati pilis' sursum accrescentibus summis 2 mm, 

 longis. Spiculae sessiles lineares vel lineari-lanceolatae, acute acu- 

 minatae, rubescentes, callo brevi obtuso minute barbulato ; gluma 

 inferior dorso basin versus excavata, sursum anguste bicarinata 

 cariuis asperulis, inter carinas enervis vel indistincte breviter 1-nervis ; 

 gluyna superior inferiori subaequilonga, navicularis, carinata, acuta, 

 hyalina, margine superne ciliata ; valva inferior vacua, hyalina, glumis 

 paulo brevior, tenulter 2-nervis, superne ciliolata ; valva superior hyalina, 

 anguste linearis, longe acutata, circa 4 mm. longa, 1-nervis, superne 

 ciliata, arista nulla vel rarissime tenui supra valvam mediam inter 

 lobos tenues orta ; palca nulla. Spiculae pediccUalae sessilibus similes, 

 nisi angustiores ; gluma inferior 5-9-norvis, carinis asperulis ; gluma 

 superior 3-nervis ; valva inferior quam gluma inferior duplo brevior, 

 cum palea byalina angustissime lineari enervi ciliata et staminibus 3 



