AMERICAN POLEMOXIACE.I:. 259 



Jloriis; bat I doubt whether that name may not be founti to 

 belong to the next; and from the description alone it is 

 impossible to decide. 



20. L. AcrcULARis. Ouly 3 to 6 inches high, very slender, 



more rigid and less pubescent than the last; the leaf-segmeuts 



linear-acerose: corolla golden yellow, througliout, the very 



slenderly filiform tube about thrice the length of the limb: 



stamens two-thirds the length of the obovate-lanceolate lobes; 

 style short. 



An exceedingly well marked species, growing with the pre- 

 ceding, but less common. Easily recognized by the stiflp 

 linear-acerose leaf-segments and slender bright j^ellow flowers. 

 It is barely possible tiiat Mr. Bentham's type specimens of 

 L, luleus may be found to represent this species; though it 

 IS not probable; for he could hardly have overlooked so com- 

 pletely the real differences between this and L. parvifloriis. 

 It is for the same reason improbable that he had this in view 

 as his GiUa micranfha var. aiirea (PL Hartw. 325), to which 

 he attributed no difference but that of the color of the corolla. 



21. L. BiiEVlcuLUS. Gilia brevicfihi^ Proc. Am. Acad. sii. 



79 (1876). This rare plant of the 3Iohave Desert I have not 

 seen. 



22. L. R03ACEUS. Leptosiphon parvijlorusy var. rosaceus, 

 Hook, f. Bot. Mag. t. 5863 (1870). Commonly branching 

 from the base and the branches decumbent, 3 to 5 inches 

 high, stoutish and with short internodes, these 5 to 7, not 

 twice the length of the leaves; segments of the lowest leaves 

 obovate-spatulate, of the upper spatulate-linear, those of tlie 

 floral bracts subulate, pimgently acute, spitmlose-serrulate 

 above the middle, more softly ciliate toward the base: corolla 

 an inch long, the tube and limb rose-red, the ample throat 



orange. 



Common on the San Francisco peninsula, on open north* 

 ward or westward slopes; not elsewhere detected. It is the 

 '^ost beautiful plant of the Lepfosiphon group, and the spe- 



