ENGELMANN NOTES ON AGAVE. 305 



Leaves hard and rigid, finely serrulate, 6-15 inches long, 

 sheathing base i-i^ inches wide, soon contracted to the width of 

 3-5 or 6 lines, tapering to the point, the sharp brown spine of 6 

 lines in length, triangular, nearly flat above, with two sharp lateral 

 and one obtuse carinal edge ; leaves usually falcate, rarely straight. 

 Scape "3-8 feet high," bearing arid filiform bracts of 2 inches or 

 more in length, smaller in the inflorescence. Flowers crowded 

 on very short knobby pedicels, 12-15 lines long, ovary and lobes 

 each 25-3, tube 6-7 lines long, and at the throat nearly 3 lines 

 wide ; filaments inserted just above the middle of the tube, reach- 

 ing about 1 inch above the perigon ; anthers 7 lines long. Fruit 

 not collected. 



** Folia margine filamentosa. 



5. Agave Schotti : acaulis ; foliis e basi lata linearibus rectis 

 seu subfalcatis rigidis supra planis concavisve dorso convexis seu 

 (siccatis) carinatis margine abunde filiferis apice in spinam ro- 

 bustam teretem fuscam excurrentibus ; pedicellis brevibus, ovario 

 et lobis perigonii patulo-erectis lineari-oblongis asqualibus tubo 

 anguste infundibiliformi multo brevioribus, staminibus superiori 

 tubi parti adnatis paulo exsertis ; stylo robusto staminibus de- 

 mum asquilongo. — A. ge?niniJiora? var. Sonorce, Torrey, Bot. 

 Mex. Bound. 214. 



Sierra del Pajarito in Southern Arizona ; ft. August ; collected 

 only by the late Dr. Arthur Schott, 1855, to whose memory I 

 have dedicated this species in consideration of long years of friend- 

 ship and of the valuable services to science rendered by him in 

 many arduous exploring expeditions in the arid southwestern 

 wilds, as well as in the primeval tropical forests of the isthmus 

 and on the plains of Yucatan. 



According to the discoverer, this as well as the next is one of 

 the Amole or soap-plants. Leaves 6-12 inches long, 3-4 lines 

 wide, terminating in a perfectly terete spine 3 lines long ; margin 

 splitting into numerous extremely fine whitish fibres. Scape $-6 

 feet high ; spike rather looser-flowered than in the last ; primary 

 and secondary pedicels about 1 line long ; flower 1 ? inches long, 

 ovary as well as narrow lobes about 5 lines, the gradually widen- 

 ing tube 8 or 9 lines long, and bearing the filaments (S lines long 

 and reaching scarcely more than 1 line beyond the lobes) ih lines 

 iii— 20 l Dec - 2 7. 1875-] 



