168 CONTRIBUTIONS TO 



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, 

 2} inches long, J 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 ; Boribus, 

 parvis, subpaniculatis ; calyce brevi, 10-carinato, lobis 

 linearibus, patulis ; corollee tubo gracili, brevi, calyce 2-plo 

 longiori, glanduloso-pubescenti, limbo late campanulato, 

 lobis rotundatis. — Provincias Argentines, vernacule Chu- 

 chu. v. v. 



a. foliis confertis, lanceolato-linearibus, valde approxima- 

 tis, scabrido-pilosis. In Prov. Cordovse et San Ludov. 



j3. 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, I 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, tingeu 

 with a rosy hue.* 



6. Nierembergia ericoides (n. sp.) — Caule adscendente, ratnu- 



*^A representation of this species is shown in Plate 18 of the " Hhis 

 tions of South American Plants." 



