ON DASYLIRION AND BEAUCARNEA. r 297 
- Folia apice integra : í 3. a it e: 
Panicalss latze, ramulis ultimis laxifloris 4. laziflor 
. GRAMINIFOLIUM, Zucearini in Otto and Dietr. aide Cavs 
pedicellis solitariis, bracteolis albidis conspicue dentatis, staminibus 
exsertis. 
A native of Northern Mexico and Texas. A well-known plant, first 
at n C. Wr ight 694, Berlandier mpte RA to Tees; Fendler 
10, 212, 419 and 549, belong here. It has been twice figured in Ger- 
many, c not in any of our own gardening publications, and [ am not 
aware that it is in cultivation in this country at the present time. 
Caudex attaining a height of 4-5 feet. Leaves in a dense ros;tte of a 
hundred or more "a the top of the caudex, the central ones rigidly 
ascending, narrow, ensiform, 3—4 feet long, half an inch broad above the 
suddenly dilated base, narrowed very gradually thence to the apex, where 
it is broken n up into a short tuft or grey stringy fibres, flat on the face 
throughout, rather rounded on the back towards the base, light green, 
not , gine, € I diese ed ribs v i pro ominent and 
ried pede usually apiid but siis did the reverse way. Scape 12-15 
fee igh, 4 4-% inch thick at the top, its leaves much reduced and passing 
1838, "^ 33, p. 259 ; fand, Enum. v. p. 40; i. Bot. Ma. ag. t. 5080. 
Yucca. acrotricha, Schiede, Linnea iv. p. 330, vi. p. 52. Roulinia 
acrotricha, Brong. Ann. Sc. Nat. ser. ii. vol. xiv. p. 820. D. dieat Zucc. 
Met Acad. Monac. iv. sect. 2,1845. R. gracilis, Brong. loc Bar- 
bacenia gracilis, Hort. Bonapartea gracilis, Hort.; foliis wp venis 
Conspicuis Voting des apice in fibris tenacibus solutis, paniculis anguste 
thyrsoideis "ramis conspicu eteatis, ramulis densiflora pedicellis “soli- 
tariis, braeteolis ipie haud dentatis, staminibus exser 
