92 ILLUSTRATIONS OF 
12 lines long, 4 to 6 lines broad, elliptic, somewhat obtuse 
at summit, cuneate at base, on a slender petiole 13 long. The 
flower is solitary upon a short horizontal peduncle, 1 line 
long; the calyx is curved and slightly pubescent, 10-nerved, 
4 lines long, with unequal, oblong and somewhat obtuse seg- 
ments; the corolla is glabrous, with a very slender tube, 
23 inches long, } line thick, its border is broadly campanulate, 
nearly an inch in diameter, with 5 short rounded lobes; the 
stamens are exserted, fixed in the extreme edge of the tube, 
quite smooth. . 
5. Nierembergia hippomanica (n. sp.)—Trav. Chile. 2, 532.— 
Planta scabrido-pilosa, caule lignoso, humifuso, radicante ; 
ramulis brevibus adscendentibus; foliis confertis, spathu- 
lato-linearibus, acuminatis, calloso-mucronatis; floribus, 
parvis, subpaniculatis; calyce brevi, 10-carinato, lobis 
linearibus, patulis; corollz tubo gracili, brevi, calyce 2-plo 
longiori, glanduloso-pubescenti, limbo late campanulato, 
lobis rotundatis.—Provincias Argentinas, vernacule Chu- 
chu. v. v. 
a. foliis confertis, lanceolato-linearibus, valde approxima- 
tis, scabrido-pilosis. In Prov. Cordove et San Ludov. 
B. foliis glaucis, glabriusculis, brevibus, anguste linearibus. 
Achiras, 
This is a low-growing species, disseminated in certain 
pasturage districts within the Provinces of San Luiz 
and Cordova, and is said by the Gauchos to be very 
poisonous to horses. The root is much thicker, more tor- 
tuous and woody than the former species, creeping along 
the surface of the ground, and throwing up several woody 
erect branching stems, 4 to 6 inches high, which are clothed 
with close-set foliage. The leaves are 4 lines long, ¢ lin. 
broad, linear, and spathulate, covered with dense scabrid 
hairs. The peduncles are 1 line long, the calyx 2 lines, the 
tube of the corolla 3 to 4 lines long, with a broad campanu- 
late border, 5 lines diameter, and is of a white colour, tinged 
with a rosy hue.* : 
ace representation of this species ig shown in Plate 18 of this 
