62 PITTONIA. 
been, and apparently must be, held as of great signifleancy in 
matters of classification. But lastly, it is in full accord with 
what we were beginning to learn about the relations of our 
Californian insular flora with that of Mexico, that this far off 
member of a group of islands singularly abounding in Esch- 
scholtzias should be the one to furnish the connecting link, if 
not an actual point of fusion, between this genus and Hunne- 
mannia. 
STREPTANTHUS ALBIDUs. About two feet high and some- 
what branching ; some scattered short setose pubescenee on 
the lower part of the stem and the lower leaves, otherwise 
glabrous, pale green and glaucous : leaves lanceolate, coarsely 
dentate, the teeth with broad callous tips; eauline with 
aurieulate-clasping base: flowers rather large, the sepals 
ovate, strongly carinate, 3—4 lines long, white : petals 6 lines 
long, the upper pair erect and parallel, lower divergent, claw 
ovate-oblong, abruptly contracted at base, 14 lines broad in 
the middle, lamina much crisped, white with purplish vein- 
lets: upper pir of filaments united very nearly to the tip, 
their anthers reduced in size but polleniferous, scarcely 
divergent: silique unknown. 
Hill-sides a few miles below San Jose, California, collected 
on the thirtieth of April, 1887, by Mr. Volney Rattan. A 
handsome white flowered species most related to S. niger, but 
of very different floral character. 
THELYPODIUM RIGIDUM. One to three feet high, stout and 
with several stiff rather wide-spread branches from about 
midway, roughish below with a short bristly pubescence, 
glabrous above: leaves ample, oblong-lanceolate in outline, 
the lower somewhat lyrate-pinnatifid, the upper laciniate 
toothed, all narrowed to a petiole : upper half of stem and 
branches loosely racemose : pods about 1} inches long, almost 
sessile, ascending or somewhat spreading, rigid and sharply 
tipped with a short ( rather more than a line long) style. 
ELS EM AE EDU 
