2 
ramen perenne, repens, 5-10 cm. (rarius altius) ascendens, glau- 
cum, nisi inferne demum stramineum; rhizoma durum, repens, 
ramosum, ramis fasciculos culmorum edens. Culmi longe repentes, 
ramosi, apice ut rami ascendentes, multinodes, omnes arcte vaginati, 
duri, parte prostrata ad 5 mm. diametro. Folia glauca; vaginae 
amplectentes ; ligulae ad limbum dense ciliolatum redactae ; laminae 
oblique vel horizontaliter patentes, e basi latiore lanceolato- -pugioni- 
formes, marginibus incurvis plerumque paulo supra basin contiguis 
itaque tubum formantibus, durae, pungentes, glabrae, dorso laevis- 
simae, facie in nervis prominentibus arcte approximatis, papilloso- 
scaberulae. Paniculae densae, ambitu ovatae, 1-3-5 cm. longae, in 
ramis terminales, albae ; rhachis subangulata, uti rami ramuli pedicelli 
tomentella vel molliter pubescens; rami primarii infimi spiculis 
longae. Varstins ambitu oblo , 1-5 mm. longa, ad 0-75 mm 
lata, atropurpurea.—Festuca suas: Forsk. Fl. Aeg.-Arab. p. 22. 
F. pungens, Vahl, Symb. t. 2. Triodia pungens, Roem. & Sch. Syst. 
vol. ii. p. 598. Calotheca arabica, Spreng. Syst. vol. i. p. 548. Uralepis 
pungens, Kunth, Rev. Gen. Gram. vol. i. p. 108. Aelwropus arabicus, 
Steud. Nom. vol. i. p. 30; Anders. in Journ. Linn. Soc. vol. v. 
A. pungens, Boiss. Fl. Or, vol. v. p. 595. A. mucronatus, Deflers Le. 
vol. xxxii. p. 355, non Aschers. A. brevifolius, Dur. & Schinz, Consp. 
Fl. Afr. vol. v. p. 901 (pro parte ex syn.). A. villosus, Blatter, FL 
Aden in Rec. Bot. Surv. India, vol. vii. No. 3, p. 399. Poa sp., Hook. 
f. in Lond. Journ. Bot. vol. vii. p. 297. Dactylis mucronata, Steud. 
Syn. Pl. Glum. vol. i. p. 298. Eragrostis sp., Benth. & Hook. f. Gen. PL 
vol. iii. p. 1187. £. pungens, Schweinf. in Bull. Herb. Boiss. vol. ii. 
App. il. p. 43; Deflers in Bull. Soc. Bot. France, vol. xxxiv. (1887), 
p- 69. Dip lachne mucronata, Hack. ex Schinz in Vierteljahrsschr. Nat. 
Ges, Zitrich, vol. lvi. p. 81, quoad syn. 
TROPICAL ARABIA, Socorra and Somarmanp. Arabia: Yemen ; 
Loheia, Forskal; Hodeida, common on sandhills, Forskal, Deflers, 
