394 PKOCEEDINGS OF THE AMERICAN ACADEMY. 



teeth (less than a line in length) : scape terete, glaucous, 1 \-2 feet 

 high, simple, floriferous above the middle ; sterile scales about three, 

 lanceolate, attenuate, slightly toothed, 1—1 ^ inches long; the floral 

 similar, but much reduced above; raceme simple, loosely 12-20- 

 flovvered; pedicels 1-1 \ lines long: tube of the perianth but 3 lines 

 long, about equalling its narrowly oblong obtusish 9-nerved segments . 

 stamens about 8 lines long: capsule very glaucous, subglobose, 5-6 

 lines in diameter. — Collected on calcareous mesas, Los Charcos, 

 2 July, 1891 (no. 3745). This number was distributed last year by 

 an oversight as " A. brunnea, Wats. n. sp." Dr. Watson's species, 

 however, was founded upon no. 2218, from which this is quite distinct 

 as to perianth and capsule. 



Sisyrinchium Pringlei. Acaulescent, strictly erect, 1-2 feet 

 high : root a dense fascicle of short, thickened fibres : leaves acerose, 

 pungent, 6-10 inches in length, with broad, sheathing bases •, the latter 

 persistent, cleaving into fibres : scapes simple, compressed : inflores- 

 cences single, terminal, an inch or more in length ; spathe of two 

 unequal bracts ; the longer exceeding and the shorter about equalling 

 the included flowers ; spikelets 2 in each spathe, unequal, 3-5-flow- 

 ered ; flowers enclosed by oblong-lauceolate, acute, scarious-margined 

 bractlets : perianth yellow ; segments 4-5 lines long capsule sub- 

 globose. — Collected on dry calcareous hills near Guadalajara, 4 

 September, 1893 (no. 4520). 



