282 PROCEEDINGS OP THE AMERICAN ACADEMY 



(n. 1349), Sept., 1887. A very peculiar species, with large bright 

 blue flowers. 



Priva Orizaba. With the habit, foliage and pubescence of 

 P.hispida: leaves more acutely dentate: flowers distinctly pedicelled, 

 the pedicels mostly equalling the linear bracts : calyx finely puberu- 

 lent, narrowly cylindrical, in fruit globose-didymous : fruit ascending ; 

 cocci 1-celled, 1-seeded. — About Orizaba, Mexico; 2950 and 3118 

 Bourgeau, and 593 Botteri in Herb. Gray. Clearly distinct from 

 P. hispida, in which the leaves are crenately toothed, the subcampan- 

 ulate calyx densely uncinate-hispid, and the fruit more or less re- 

 flexed upon the very short pedicels. This last species was collected 

 in the valley of Mexico by Bourgeau (n. 359) and Schaffner (n. 425), 

 and in Chihuahua by Mr. Pringle (n. 287 of his 1885 collection, 

 distributed as P. echinata). 



Microsttlis Pringlei. Stem slender, over a foot high, from a 

 round-tuberous base, 1 -foliate: leaf narrowly oblong above the sheath- 

 ing base, acute, 2 inches long : raceme elongated, loose ; bracts green, 

 triangular-subulate, equalling or shorter than the very slender pedicels 

 (about a line long) : flowers 1| lines long, very narrow, greenish yel- 

 low ; lateral sepals narrowly lanceolate and subfalcate, acuminate, 

 contiguous behind the lip, the lower lanceolate with a broad base, 

 reflexed against the ovary ; petals nearly filiform, much shorter, 

 coiled backward ; lip triangular-hastate, obtusish, a line long, with a 

 dull brownish line near each margin ; basal auricles oblong : ovary 

 minute, mostly reflexed on the ascending pedicel. — On shaded gravel 

 banks in the Sierra Madre, Chihuahua ; C. G. Pringle (n. 1369), 

 Oct., 1887. Near M. ocreata. 



Microsttlis crispata, Reich, f . ? A rather stout species, a foot 

 high, with 2 or 3 oblong very acute or acutish loosely sheathing leaves 

 about 4 inches long : raceme elongated (4 to 7 inches long) with 

 numerous crowded flowers ; bracts deltoid, acute, nearly equalling the 

 very short thick erect pedicels: flowers greenish yellow; sepals oblong- 

 ovate, obtuse, the margins revolute, the upper narrower, over a line 

 long ; petals linear, as long ; lip cordate and concave-saccate, the 

 pinkish acute apex thickened and cucullate : ovary and capsule 

 strongly crispate-angled, the latter three lines long. — In cool damp 

 soil in the Sierra Madre; C. G. Pringle (n. 1371), Sept., 1887. M. 

 crispata is referred by Mr. Ridley, in his recent revision of the genus, 

 to M. myurus, and he must have examined Hartweg's specimen in 

 Herb. Kew upon which the species was founded, though he does not 

 mention it in his paper. Mr. Pringle's specimens are nevertheless so 



