260 



PITTONIA. 



cific characters are as good as are found in tliis subgenus. 

 The orange color of the tliroat extends well up the base o! 

 the segments of the corolla, giving the flower the appearancd 

 of having a broader tliroat. The color of this part is constant 

 in even the albino state of the species. 



23. L. BicoLOR. Leptosiphon bicolor, Nutt. PI. Gamb. & 

 Proc. Philad. Acad. iv. 11 (184S). GiUa tenella, Benth. PI. 



irtw. 325 (1849). Yery near the last, but dwarf (2 or 3 

 inches high); flowers rose-purple, the elongated corolla-tube 



H 



the limb much smaller, only 2 or 3 lines broad. 



ijli 



foot 



hills of the Mt. Diablo, northward, extending into Oregon. 



H 



Rigid, stiict, -I to 1 foot high, scabrous pubescent: internodes 

 long: leaves with 5 to 9 linear rigidly ciliate segments: corolla 

 rose-color, very small and slender, little longer than the floral 

 leaves, the rotate limb only 2 lines broad. 



Var. MONTANUS. Larger, with corolla an inch long, it 

 throat fuunelform, the limb 4 or 5 lines broad. 



The type is very common in groves among tlie foothills of 

 the Coast Range, perhaps chiefly on the Sacramento Valley 

 side. The variety, very strongly marked as to its corolla, 

 belongs to the Sierra Nevada at higher than middle elevations. 



Corolla hroadhj fannelform above the short tube. 

 GBAXDiFLORUS. Leptostpkon grandijiorus, and 



2>. L. 



'^fi 



Very 



rigid and strict, | to 1| feet high, the rigid linear-subulate 

 leaf-segments 5 to 11, ascending, spiuulose-serrulate on the 

 margin and toward the base somewhat ciliate: corolla lilac, 

 the tube little exserted, the limb more than | inch broad. 



Said to be common toward the coast in middle California; 

 but one seldom meets with it in recent years. Bentham's L. 

 densiflorus was distinguished from his grandiflorus by hav- 

 ing the tube of the corolla even shorter than the limb. 



