38 
CEANOTHUS thyrsiflorus. 
Thyrse-bearing Ceañothus. 
PENTANDRIA MONOGYNIA. 
Nat. ord. RHAMNACEZ. 
CEANOTHUS. Botanical Register, vol. 4. fol. 291. 
C. thyrsiflorus; caule arboreo, ramulis inermibus angulatis, foliis ovato- 
oblongis glanduloso-serratis lucidis utrinque viridibus subtus pubescen- 
tibus triplinerviis, paniculis terminalibus oblongis contractis racemi- 
formibus. 
C. thyrsiflorus, Eschscholtz in mem. acad. Petrop. 1826. Hooker Fl. Bor. 
Am. 1.125. Torrey $ Gray, Flora of North America, 1. 266. 
C. divaricatus, Hort. nec Nuttall. 
A perfectly hardy shrub, as this is, with evergreen foliage 
of the most beautiful glossy green, and dense panicles of 
bright blue flowers, is indeed an acquisition to our gardens. 
In all respects this is one of the most valuable things that has 
been introduced for years. The country owes it to R. B. 
Hinds, Esq., who, while surgeon to the Sulphur surveying 
ship, occupied himself with Botany, formed collections of 
dried plants, now publishing under the auspices of the Admi- 
ralty, and sent home seeds to the Horticultural Society, from 
among which this was obtained. He describes it as being 
common at San Francisco and Monterey, where it produces a 
most beautiful effect. 
A considerable number of plants have been distributed by 
the Horticultural Society under the name of C. divaricatus, 
which species it was at first supposed to be. Now, however, 
that it has flowered, it proves to be C. thyrsiflorus, and the 
first name has to be changed. 
According to Messrs. Torrey and Gray, this species forms 
a small tree, with a stem sometimes as thick as a mans arm. 
The wild specimens, gathered in California by Douglas, for 
he too found it, appear to belong to a plant of considerable 
