18 



PROCEEDINGS OF THE CALIFORNIA 



Fig. 2. 



Fig. 3. 



V. 

 subsessile head. Calyx obconic, membrauaceously 



diaphanous at the base ; segments green, cup pris- 

 matic (or pentangular) ; also with five prominent 

 processes, or folds, at the clefts, the semi-lanced seg- 

 ments acute, or acuminate, subulate pointed, three- 

 nerved. 



The filiform flowers twice the length of the calyx, 

 border spreading, tube contracted below, stamens 

 equal, or sub-equal, inserted into the throat ; capsule J ; 



obovate, emarginate. , '} ) J)^ 



A very diminutive species from the western slope ' \ 



of the Sierra Nevada Mountains, found by Mr. Herbert C. Dorr, 

 yields a beautiful yellow dye, hence the specific name. 



The plant 



C. micrantha Kellogg. [Fig. 3.] 



Plant upright, simple, or branching above ; somewhat viscid-pubescent. 



Lower leaves opposite, ovate, obtuse, petioles very short ; middle cauline 

 leaves ovate- oblong, obtuse or subacute, corneously mucronate, sessile or subses- 

 sile, three to seven-nerved ; upper leaves mostly alternate, all somewhat silky, 

 viscid-pubescent. Flowers pedicillate, axillary and terminal in a condensed, sub- 

 cymose head ; calyx lobes sub-equal, linear-lanceolate, often sub-spatulate, acute, 



