102 



PITTONIA. 



a preceding year\s growth. In S. IcdifoUa tliey terminate the 

 newly grown or growing shoots of the year, 



I 



Parnassia Califobnica. p. palustris, var. Californica, 

 Gray, in Brew. & AVats. Bot. Calif, i. 202. Leaves from ovate- 

 oblong to oval, an incli or two long, tapering from tlie broad 

 or rounded base to a long or short petiole : scape 1 or 2 feet 

 high, its very small sessile leaf borne above the middle and 

 not cordate-clasping : corolla 1 to 1| inches broad. 



Northern California and southern Oregon. The large taper- 

 ing plantain-like leaves, very small bract near the top of the 

 scape, and the extremely large flowers compel me to regard 

 this as entirely distinct from P. jmlustris, a plant whose 

 leaves exhibit no tapering of the lamina to the petiole, and 

 whose bract is always large and near the base of the scape. 

 I have seen no Californian specimens of iiuQ P. jndusir is ; 

 and it belongs to regions veil to the northward of the most 

 northerly habitat of P. Californica. Specimens collected by 

 Mr. Howell in 1889, in swamps near Waldo, Oregon, are 

 larger than any of tlie Californian, with their characters still 

 more pronounced ; tlius showing that the plant recedes from 

 P. palustris in character as it approaches the region where 

 that species grows. 



m 



Selixum eeyngiifolium. Stoutish, 18 inches high, stem 



and bladdery-dilated petioles glabrous, the leaves roughish- 



pubescent and the inflorescence white-tomentose : the bi- 



pmnate leaves contracted, the ovate acute leaflets i inch long 



or less, somewhat pungently tipped and recurved: fruit 

 uuhnown. 



Collected near the Yosemite Valley, California, June, 1889, 

 by Mmer Drew. Eelated to S. capitelhdum, but smaller and 

 with a peculiar almost thistle-like foliage. 



SiUM HETEROPHYLLUM. Roots fusiform-thickened below 

 the middle ; stem stout, notably angular and flexuous, 3 feet 

 high : lowest leaves with a simple lamina which is rather 



