296 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Agave (Euagave) coUina. Acaulescent: leaves 30 to 40 in a 

 rosette, linear-attenuate, G to 8 dm. long, 2 cm. broad just above the base, 

 2|- cm. broad at the middle, gradually narrowed to the apex and termi- 

 nated by a reddish brown spine (2 cm. or more long), margin narrowly 

 cartilaginous bearing reddish brown straight or curved teeth (3 to 5 mm. 

 long) at intervals of 8 to 18 mm., upper surface concave, below convex, 

 bluish green: peduncles 3 to 4 m. long: panicle 6 to 8 dm. long, the 

 lower branches about 3 dm. long : flowers greenish yellow, includiug the 

 stamens, 9 cm. long : tube of the perianth 1^ cm. long, funnel-shaped ; 

 segments linear-oblong, obtuse, thickened at the apex, about 2 cm. long : 

 stamens more than twice as long as the perianth-segments ; filaments 

 flattened, glabrous, about 5 cm. long from the point of insertion ; anthers 

 2^ to 3 cm. in length : style overtopped by the anthers : fruit a loculici- 

 dal capsule, 4^ to 5 cm. long, 2| to 3 cm. in diameter ; seeds obliquely 

 triangular, about 1 cm. long. — Collected by C. G. Pringle, on hillsides 

 near Cuernavaca, altitude 1,500 m., 1896, no. 6349. This may prove 

 eventually to be identical with the imperfectly known species A. serra- 

 tula, Karw., but as the flowers and fruit of the latter are unknown, and 

 our plant does not agree in all details with the fragmentary description 

 of Karwinski, it seems best to regard Mr. Priugle's plant as a distinct 

 species. 



Nemastylis caerulescens. Bulb ovoid, 1| to 2 cm. in diameter, 

 covered with dark brown scales : stem or scape 14 to 20 cm. high, 

 branched above, bearing 1 to 3 pedunculate spathes : the outer radical 

 leaves much reduced, the inner a single linear-attenuate leaf, 10 to 

 15 cm, long, usually exceeding the scape ; stem leaves reduced to lance- 

 attenuate bracts, 3 to 4^ cm. long, subtending the inflorescence or pe- 

 dunculate spathes : peduncles 1 to 2^ cm. in length : bracts of the spathe 

 linear-oblong, acuminate, the outer 2 to 3 cm. in length, the inner a little 

 longer : pedicels slender, 2^ to 3^ cm. long : flowers white, sometimes 

 with a faint shade of blue, 3|- to 4|- cm. in diameter, becoming reflexed ; 

 divisions of the perianth flabellate-nerved, hirtellous-puberulent above 

 near the base, the outer oblong-elliptic, about 6 mm. broad, the inner 

 somewhat smaller and a little narrowed toward the base : filaments united 

 at the base, free portion flattened, about 2 mm. long ; anthers 1 cm. in 

 length, curling with age: capsule smooth, obovoid, subtruncate above, 

 7 to 10 mm. long, 5 to 7 mm. in diameter: seeds irregularly angled, 

 yellowish, minutely pitted, 2 mm. long. — Collected by C. G. Pringle, 

 on dry gravelly soil near Cuernavaca, altitude 1,600 m., June, 1896, no. 

 6324. A species most nearly related to M. acuta, Herb. (N. geminijiora, 

 Nutt.), but a much smaller plant and with different flowers. 



