12f) 



PITTONIA. 



1. B. PUsiLLA. Lobelia pus'dla, Poeppig, ex Cham, in 



Liunjiea, viii. 217 (1833). Clinionia pusilla, Don. Gen. Sysi 



iii. 718 (1834) ; DC. Prodr. vii. 347 ; Gay, Fl. Chil. iv. 323. 



The South American representative of Bolelia, and near to 

 the next species. 



2. B. ELEGAxs. Clinionia clcgans, Dougl. in Lindl. Bot. 

 Keg. t. 1241 (1829). Gijuampsis flexuosa, Eaf. Ant. Bot. 14 

 (1840). Downingia elegans, Gray Syn. Fl. ii. 8 (1878), 

 partly. Li the common plant of Oregon, Washington and 

 Idaho, which must be the type of this species, as well as of 

 the genus, the larger (apparently lower) lip of the corolla is 

 deeply concave, the bottom of the concavity being at first 

 white, but afterwards changing to the same blue as the rest 

 of the organ. The segments oE the other lip, narrow and at 

 first nearly parallel, are ultimately laid one across the other. 

 A hint of this characteristic will be noticed in even the origi- 

 nal figure of the species in the Botanical Pwegister. T do not 

 think the plant has been found in California ; and, from the 

 character of the soil and climate where it abounds, I should 

 not expect it to occur in even the extreme north of the State. 



3. B. INSIGNIS. Downingia elegans, Gray, as to the Cali- 

 fornian plant. D. insignis, Greene, Pitt. ii. 80 ( 1800) . Con- 

 fined to the plains of the interior of middle California, and 

 common in herbaria under the name of ''Domiingia elegans^ 



The species is remarkable for few and very large flowers 



\ 



* * L 



arger lip plane, nearly or quite trefoil-shapjed, i.e., 



parted into 3 broad lobes. 



4. B. PULCHELLA. Clinionia pulchella, Lindl, Bot. Beg. 

 t. 1009 J 1836). Downingia pulchella, Torr. Pac. E. Eep. iv. 

 116 (1857). Very common in middle California. The lip is 

 not, as in all the following, quite like a trefoil in the depth 

 and arrangement of its lobes ; so the species is in a manner 

 intermediate between the two groups. 



