564 PATAGONIAN EXPEDITIONS I BOTANY. 



2. DISCARIA ARTICULATA (Phil, sub Colletia} Miers. 



Leafless, glabrous; branchlets strict, having 3 internodes, articulated, 

 ending in a spine. Flowers crowded, with 4 stamens. Pedicels as long 

 as the white, glabrous calyx ; calyx-teeth erect, broadly triangular. Petals 

 lanceolate, equalling the calyx-teeth. Genitalia included. 



"The lines joining the stipules prove it to be Discaria, not Colletia" 

 (O. Ktze.) 



(Chili) ; Patagon. in shrubberies near Carren-leofu. 



3. D. COGNATA (Miers sub Notophcena]. 



Branches long, virgate, angled-striate, glabrous, with long, pungent 

 spines, floriferous at their middle. Young branches floriferous, arising 

 below and exceeding the spines. Leaves opposite, elliptic-oblong, cre- 

 nate-serrate, narrowing upwards ; green above, pale underneath. Stip- 

 ules and transverse sheath manifest. Flowers 24, fasciculate on long 

 peduncles, 2-4 times exceeding the petiole and calyx. Calyx 4-cleft, 

 glabrous. Stamens 4, shorter. Ovary pilose, style long. 



Chiloe I.; Patagon., by Lago Nahuel-huapi and Lago Argentino. 

 "Scarcely receding from the type. Leaves more numerous and deficient 

 in spinescent branches." 



4. D. DISCOLOR (Hook. f. sub Colletia] B. & H. 



A small, spiny, glabrescent shrub, with bright, green bark, of habit of 

 European Ulex. Branches rigid, terete, sparsely leafy, with jointed 

 spines. Leaves evergreen, elliptic-oblong or obovate, obtuse, obscurely 

 serrate, attenuate to a short petiole, paler underneath, 12 mm. long. 

 Peduncles axillary. Calyx 4-cleft. Cocci pilose, i -seeded. Testa crus- 

 taceous, shining. 



(Chili) ; Patagon., Magellan, Fuegia, Ushuaia, Navarino I. By Rio 

 Aysen in W. Patagon. (Dusen.) 



5. D. FEBRIFUGA Mart. 



Leafy, becoming leafless ; branches slender, green when young, often 

 finely white punctate. Spines terete, subulate, 2-leaved. Leaves peti- 

 oled, lance-linear to oblong, i -nerved. Stipules acute, sheathing, the 

 branch ciliolate when young. Calyx as long as the pedicel ; capsule 

 longer (6-8 mm.) shining, reticulate. 



