I c;0 DAVENPORT ACADEMY OF NATURAE SCIENCES. 



identified from the description with C. azitreus, Kell., Proceed. Cal. 

 Acad., I., p. 55 (1855), and from actual specimens of Bolander, No. 

 4,558, fide Watson (4,548 Herb. Cal. State University), I am obliged to 

 regard it as a well-marked, undescribed species, and, being precluded 

 from the use of personal names in the fact that it had passed through 

 the hands of several collectors under different names, I herewith char- 

 acterize, viz. : 



C. tomentosus, n. sp. C. sorediatus, Parry, 1. c, not Hook. & Am. 

 Character transferred and enlarged. 



Four to eight feet in height, with slender branches light gray or red- 

 dish, younger shoots densely rusty-tomentose, deciduous on the older 

 branches; leaves short petiolate, sparsely scattered on the branches, 

 with short fasciculate branches in the axils, oval to sub-cordate, 10- 

 25 mm. in length, dull green, smooth above, tomentose beneath, 

 strongly triple-nerved from the base, irregularly and coarsely glandular- 

 serrate, occasionally sub-lobed; inflorescence compact or oval, on short 

 or more or less prolonged peduncles, flowers intense azure ; fruit 3 mm. 

 broad, with inconspicuous crests at maturity. 



Habitat: — Known to the writer only from the brown sandstone 

 ledges of lone, Amador County, associated with Arctostaphylos myrt- 

 ifolia, Parry, flowering in March, fruit in May. 



The necessary changes in the synoptical list, Parry, 1. c, will be in- 

 dicated in the systematic summary at the close of this paper. 



On revisiting the always attractive botanical locality of Monterey, 

 so replete with historical associations, I lost no time in exploring the 

 brushy wastes north-east of Hotel del Monte, near where, in 1850, I 

 had collected the typical Ceanot/ius dentatus, Torr. & Gray, from which 

 specimens was drawn the excellent figure, Plate X., Bot. Mex. Bdy. 

 Survey. In my recent paper, Proceed. Dav. Acad., V., p. 171, I had 

 been inclined to discredit this species, regarding it as a reduced form 

 of C. papillosus, Torr. & Gray, without the papillae. But here on the 

 ground, while still fresh from a view of C. papillosus at its near home 

 in the Santa Cruz Mountains, the question was soon to be settled. So, 

 in struggling through a thicket of Adenostoma, my eye was attracted by 

 a low-branching shrub, with crumpled, varnished leaves of a yellowish- 

 green aspect. This, on closer inspection proved to be the genuine C. 

 dentatus, probably from the original locality whence Douglass procured 

 his specimens. It did not take more than a glance (though I had made 

 many before on dried specimens) to show that it was clearly distinct. 

 Much of the confusion that has heretofore attached to this species is 



