154 iPITTONIA. 



fancy lies largely in the fact that the configuration of the 



corolla In the different species eludes the eye wliich has but 



the distorted and shrunken herbarium specimen in rieV. It 



is certain that, in respect to this organ, there are wide and 



constant differences, and descriptions that shall be diagnostic 



will be drawn up only with the fresh corollas of the different 

 shrubs in hand. 



The following account of the species, although doubtless 



better than that given by me in 1885, is not altogether satis- 

 factory. 



* Corollas huff or pale salmon-color. 



1. 



Mag. under t. 3G55, 

 Hist. i. 138 (1838) : Benth. in DC. Prodr. x. 



368 (1846) ; Greene, Bull. Calif. Acad. i. 95 (1885). M 



We 



* • » 



t. 3G4 (1798) ; Willd. 8p. iii. 361 (1800) ; Beuth. Scroph. 

 Ind. 28 (1835). M. aurantiacus, Curt. Bot. Mag. t. 354 

 (1797 ?). Diplacus latifoUus, Nutt. 1. c. D. sfellahis, Kell. 

 Proc. Calif. Acad. ii. 18 (1863) ; Greene, Bull. Calif. Acad. 

 i. 95. In the type of this species, well figured by Curtis 

 long ago, and most beautifully and perfectly represented in 



^ >i'tus Scli(3eiibruunensis, the leaves are thinnish 



H 



out- 



line, obtusish, with a margin saliently erose-dentate or some- 

 what serrate, not revolute ; the lower face, as seen under a 

 strong lens, thickly covered with minute resinous globules, 

 these usually sessile, but some of them raised on very short 

 simple hairs. The profuse pubescence, also confined to the 

 growing parts of the stem and lower face of the leaves, is 

 intricately branched, but not from the base. Each separate 

 hair is dendroid. 



The pattern of the corolla, very coxrectly given in the 

 plates above cited, does not exactly recur in any of the other 

 species. The nearest approach to it is made in D. jniniceiis ; 

 but even here it is modified, the lobes being narrower. The 



