210 PATAGONIAN EXPEDITIONS: BOTANY. 



P. 673, add after line 3, the genus : 



NAVARRETIA Ruiz et Pav. 



Calyx obconical, or tubular-campanulate, lobes unequal. Corolla small, 

 its lobes shorter than the slender tube. Stamens 5-4 ; style not longer 

 than corolla, stigmas 2 or 3. Ovary 3-2-celled. Annual herbs, viscid 

 or foetid, the characters varying in different species. (In Navarretia the 

 calyx is not burst by the pressure of ripening ovary ; and its leaves are 

 always opposite ; Gilia and Phlox may have alternate or opposite leaves, 

 and the calyx is finally ruptured by the growing fruit.) 



Chiefly Equatorial and N. American, in California. 



N. INVOLUCRATA Ruiz et Pav. 

 Vice syn. Gilia navarretia Steud., described p. 671. 



Leaves pinnatisect, segments subulate, very acute. Heads small, dense- 

 flowered ; bracts hyaline at base. Calyx-lobes cleft to the base, into 2-3 

 linear spinescent segments, half as long as the tube. Corolla blue or 

 white. Stamens exsert. Capsule ovoid, 2-3-seeded. 



Andes, extending southwards to Rio Carren-leofu, and Chubut, Golfo de 

 S. Jorge. 



The following should be omitted, as non-Patagonian or non-Polemo- 

 niaceous : 



Gilia campanulata. 



G. polyclados Torr. 



Polemonium micranthum Benth. 



Collomia patagonica Speg. (is Nicotiana alpina Poepp. fide Stuckert et 

 Brand.) 



N. INVOLUCRATA R. & P. var. PUMILA Speg. 



Very low, caespitose stems, nearly none, leafless. 

 Mid-Patagonia, Teka-choique. 



N. INVOLUCRATA R. & P. Var. TRICHOPHYLLA Speg. 



Leaves cauline, linear, entire. 

 S. Chili, and Patagonia. 



