2O6 PATAGONIAN EXPEDITIONS I BOTANY. 



fi. Calyx-tube leaf-like, veined. Leaves pinnate. Polemoninm. 



C2. Calyx-tube all, or chiefly whitish. Cauline leaves entire or pin- 



natifid, or palmately divided, or rarely o. 

 d\. Calyx-sinuses with membranous folds ; enlarged in fruit and 



not rupturing. Collomia. 



d2. Calyx sinuses without folds, on maturity usually rupturing to 



its base. 

 ei. Stamens unequally inserted, included in the corolla-tube. 



Leaves entire. Seeds not changing under water. Phlox. 



e2. Stamens evenly inserted, if otherwise, the leaves are then 

 pinnatifid. Seeds mucilaginous or spirilliferous under 

 water. When stamens are included, leaves entire. 

 f\ . Calyx -teeth equal, if ever unequal then the corolla is 



campanulate. 



g\. Stem leafy. Cilia. 



g2. Stem leafless. Gymnosteris. 



/2. Calyx -teeth unequal ; leaves never opposite. Navarretia. 



(62 is non-Patagonian, mostly bilabiates.) 



3. The following are the Patagonian species, according to Brand's 

 system. 



P. 668 : 



COLLOMIA BIFLORA (Ruiz et Pav., 1798) Brand vice syn. PHLOX LINEARIS 



Cav. (1801), described p. 668. 



Bolivia; N. Chili; Uruguay; Patagonia, western part, principally in 

 the district of the deciduous beeches ; known from the confluence of Rio 

 Limay with Rio Neuquen, at least as far as Ultima Esperanza. 



P. 668: 



C. GRACILIS Dougl. 



Is to be changed to Gilia gracilis (Dougl.) Hook., described p. 668. 

 From Alaska to Lower California ; Peru ; Bolivia ; Chili ; Patagonia 

 and Fuegia. 



Subsp. EUGRACILIS Brand var. ERITRICHOIDES (Gris.) Brand. 



Syn. Collomia chubutensis Speg. 

 P. 669 : 



C. LINEARIS Nutt. 



The South American form is accepted as a distinct species by Wilde- 

 man, called C. coccinea Lehm. ex Benth., as "admitted by English 

 authors" (Voyage du S. Y. Belgica, p. 142). (G. M.) 



