WEST AMERICAN ASPERIFOLLE. 55 
inconsistency, at least since among the many modern and 
unequivocal new accessions to the closely related genus Pents- 
temon there are some species with very eccentrically bilabiate 
corollas and others with perfectly regular ones. But now 
since a collinsia of the bilabiate type can sportively array 
itself partly in tonella blossoms and partly in such as are at a 
complete remove from all irregularity of form, there seems to 
be no support left for Tonella ; for the plants which have 
been so named have not the least peculiarity of habit or 
aspect, or any fruit character. They are perfect collinsias in 
all but what is now shown to be the mere accident, of a plane . 
rather than folded lower corolla-lobe. One of the two species 
affected by these considerations is 
COLLINSIA TENELLA, Benth.; DC. Prod. x. 593 — Tonella 
collinsioides, Nutt. in Gray, Proc. Am. Acad. vii. 378, xi. 92, 
Bot. Cal. i. 555, & Syn. Fl. 257 ; the other is 
COLLINSIA FLORIBUNDA — Tonella floribunda, Gray ll. ec. 
SoME West AMERICAN ASPERIFOLLE. 
II. 
The new classification of our Pacific American Eritrichiex 
proposed in these papers is founded largely in the nature of 
the pedicels and fruiting calyx, as will be seen by reference 
to pages 10 and 11 preceding, where also the very wide differ- 
ences, in this regard, between Allocarya and Krynitzkia have 
been pointed out. 
Two other new genera are now to be instituted; and it 
might be enough to say concerning Oreocarya that, in habit 
it is exceedingly well marked. Lithospermum, Onosmodium 
and Onosma are far more like each other in general ap- 
pearance than are Allocarya, Oreocarya and Krynitzkia. 
But over and above the differences in habit, Oreocarya is 
