CHAP. XVIII. FLORA OF CHIMBORAZO. 333 



The stream was dried up in the Vallon de Carrel, and we con- 

 tinued onward towards Tortorillas until water was found, and 

 made our Sixth Camp (13,353 feet) some distance short of the 

 tambo, at the mouth of the Vallon de Debris, in a little nook, 

 concealed from the view of persons crossing the Great Arenal. 

 The 5th of July was occupied in completing collections ^ and other 



^ I give here a complete list of our Botanical gatherings upon Chimborazo, 

 exclusive of species which were obtained lower than 14,000 feet. — Lichens. Par- 

 inelia, near centrifuga, south side (14^15,000 feet) ; Umbilicaria sp. ? north - west 

 side (15,800) ; Neuropogon melaxanthus, Nyl., second camp (16,660) ; Alectoria 

 divergens, Ach., second camp (16,660) ; A. ochroleuca, Nyl., second camp (16,660) ; 

 Lecidea geographica, Fr. var., second camp (16,660); Stereocaulon sp.? second 

 camp (16,660) ; Oyrophora or perhaps Endocarpon sp. ? third camp (17,285) ; 

 Lecanora (section Squamaria), second camp (16,660) ; Lecanora, section Placodium, 

 second camp (16,660) ; and L. sicbfusca, L., foot of the Southern Walls (18,400). 

 Mosses. Andrecea striata, Mitt. ; Brachymenhmi fusiferura, Jaeg. ; Grimmia con- 

 sobrina, Kunze ; G. apocarpa, Hedw. ? ; G. fusco-lutea, Hook. ; and Mielichhoferia 

 lojigiseta, CM., all from the immediate vicinity of the second camp (16,550-16,750), 

 Fern. Fohjpodium pycnolepis, Kze., in Vallon de Carrel (14,900). Grasses. Festiica 

 mollis, Kth., east side, above Chuquipoquio (14,000); and Poa sp.? south side 

 (15,000-15,500). Flowering plants. Labiatae : — Stachys repens, M. & G., above 

 Chuquipoquio (14,000). Scrophulariacefe : — Bartsia gracilis, Benth., north-east side 

 (13-14,000) ; Calceolaria rosmarini folia, Lam., above Chuquipoquio (14,000) ; Castil- 

 leja fissi folia, L., south side (14,000-15,000). Gentianaceae : — Gentiana cerastioides, 

 H.B.K., north side (13,000-14,000); G. cernua, H. & B., south side (14,000-16,000); 

 G. rupicola, H.B.K., south side (15,500-16,300); G. sedifolia, H.B.K., south side 

 (15,500-16.000); and Halenia gracilis, Griseb., north-east side (13,000-14,000). 

 Ericaceae: — Vaccinium epacridi folium, Benth., north side (13,000-14,000). Com- 

 positie : — AcJiyrophorus Quitensis, Sz. Bip., south side (15,500-16,300); JBaccliaris 

 (Loricaria) ferrugbiea, Pers., Vallon de Carrel (14,000-15,000) ; Bideiis humilis, 

 H.B.K., south side (13,000-16,500); Chuquiragaa insignis, H, & B., south side 

 (14,000-15,000); Culcitium nivale, H.B.K., near second camp (15,500-16,300); 

 C. reflexum., Kth., Vallon de Carrel (14,000-15,000); and Werneria sp. ? 

 south side (14,000-15,000). Valerianese: — Phyllactis latifolia. Spruce, north side 

 (13,000-14,000) ; P. inconspicua, Wedd. ? second camp (16,600) ; Valeriana ahjssi- 

 folia, Kth., Vallon de Carrel (14,000-15,000) ; T". microphyllce aff., south side 

 (13,000-14,000); Valeriana sp.? south side (15,500-16,500). Ribe siaceae : — i?i&es 

 glandidosum, R. & P., north-east side (14,000). Leguminosae : — Astragalus gemini- 

 jlorus, H. & B., south side (14,000-15,000) ; Lupluus humifusics, Benth., north-east 

 side (13,000-14,000); Lupinus sp. ? (13,000-14,000); Lupimcs sp. ? south side 



