614 PATAGONIAN EXPEDITIONS I BOTANY. 



corolla. Sepals dorsally clawed. Petals obcordate, entire, yellow, becom- 

 ing purple. Stigma andfrm't thick, long, cylindrical, villous. 

 N. Patagon., by Rio Negro. 



9- CENOTHERA PYGM/EA Speg. 



Minute annual, pubescent to glabrous. Leaves sessile, ovate, subob- 

 tuse, remotely toothed. Flowers small, axillary, sessile, solitary. Petals 

 whitish-pink, 2-lobed. Stamens 4. Ovary tetragonal, rather i -celled. 



S. Patagon., along Rio Chico. 



10. GE. STRICTA Ledeb. 



Stem and branches erect, hirsute, as the calyx. Leaves coarsely-toothed, 

 or remotely denticulate, acute, subglabrous ; the lower leaves narrow spatu- 

 late-lanceolate, to ovate, or linear-lanceolate. Allied to (E. biennis. 



Patagon., by Rivers Gallegos, Neuquen and Limay; W. Patagon. in 

 upper valley of R. Aysen. (Dusen.) 



II. GE. TENELLA Cav. 



Annual. Stem simple, strict. Leaves linear-spatulate. Flowers small. 

 Petals obovate, obtuse, violet. Style longer than the erect stamens and 

 much shorter than the petals. Stigmas obovate, short. Capsule cylindri- 

 cal, tetragonal, tomentose, exceeding the bract. 



(Chili) ; N. Patagon., by Lago Nahuel-huapi. 



5. CHAMISSONIA Linn. 



As CEnothera, but with capitate stigma, short campanulate calyx-tube, 

 and i -seriate seeds. Stamens unequal. Capsule sessile, linear or atten- 

 uate upwards, mostly compressed and slightly twisted. 



Soft herbs or low weeds with small leaves. (Fig. of flower in Eng. & 

 Prantl, iii, 7, p. 216, B. C.) 



C. TENUIFOLIA (Spach. sub Sphcerostigmd]. 



Stems virgate, suberect, puberulous. Leaves narrowly linear, obtuse, 

 subentire, sometimes puberulous at margin. Petals obovate, subentire, 

 much shorter than the ovary, thrice as long as the longer stamens. Cap- 

 stiles very slender. 



(Chili) ; Patagon., near mouth of Rio Chubut at Rawson. (Dusen.) 



