OF ARTS AND SCIENCES. 375 



this hitherto only Mexican genus are not very well known, but judi^- 

 iug from the figures and descriptions tliat are given of them this is 

 clearly distinct, as it certainly is from the San Luis Potosi specimens 

 of SchafFuer and of Parry & Palmer, referred perhaps erroneously to 

 H. glumerata, Zucc. 



TiGRiDiA DuGEsii. Culm about 10 inches high, shorter than the 

 leaves, from an edible reddish-black bulb : flowers golden yellow, the 

 divisions dotted near the base with reddish purple ; sepals oblong-ovate, 

 nearly an inch long ; petals hastate-lanceolate, acuminate, half as long, 

 very shortly unguiculate : stamineal column stout : filiform segments 

 of the 2-cIeft stigmas as long as the anthers (2 lines long) : fruit 

 oblong, 4 lines long, — Described from careful drawings and notes 

 received from Professor A. Duges of Guanajuato, Mexico, where it is 

 known as " Jahuique de Tupataro." 



Iris bracteata. Eootstock slender: radical leaves solitary, rigid, 

 much exceeding the stem (1 to 2 feet long), striate, one side green, the 

 other glaucous, revolute on drying : stem nearly a foot high, covered 

 with imbricated sheathing bracts 2 to 4 inches long : bracts of the spathe 

 approximate, 2 or 3 inches long, 2-flowered : perianth yellow, with a 

 short funnelform tube ; sepals oblong, naked, 2 or 3 inches long, the 

 oblanceolate petals somewhat shorter: capsules on exserted pedicels, 

 ovate-oblong, an inch long. — Collected near Waldo, Josephine County, 

 Oregon, by Thomas Howell, June, 1884. A remarkable species in 

 its foliage. The leaf is unique in character, strictly though obscurely 

 equitant at base, the blade vertical, but the two sides very different, — 

 one side having numerous stomata and an exceedingly thin cuticle, 

 very much as in some revolute-leaved grasses. 



Gelasine Tk.xana, Herbert? {Calydorea Texana^'S^iikev.) Stem 

 G or 8 inches high, with one or two very narrow scarious-sheathing 

 leaves, the terminal bibracteate spathe 1| inches long; pedicel solitary, 

 shortly exserted: ovary narrowly oblong, 3 lines long, narrower below: 

 perianth purple, the outer segments oblanceolate, an inch long, the in- 

 ner obovate, 3 lines long, about equalling the filaments, which are united 

 nearly to the top; anthers 4 lines long: style equalling the stamineal 

 tube, the linear stigmas as long. — In damp prairies at San Anto- 

 nio, Texas; Dr. V. Havard, April, 1884. This is probably the plant 

 upon which Herbert founded his species, which is known only from 

 his description and from Drummond's specimens (n. 415 of his third 

 collection) upon which it was based. These specimens in the Gray 

 herbarium, however, belong wholly to Nemastylis geminijiora, Nutt., 

 with the exception of a single separate imperfect flower. The charac- 



