44 SILVA OF NORTH AMERICA. 
RHAMNACE. 
gardens in 1837 by Richard Brinsley Hinds,’ who sent seeds to the Horticultural Society of London. 
Ceanothus thyrsiflorus, like the other Californian species, is not hardy in the eastern states; and in 
Kurope it is now rarely cultivated, having been replaced by garden varieties and hybrids with more 
showy flowers. 
1 Richard Brinsley Hinds ; a surgeon in the British navy, is best 
known from his association with the voyage of discovery of the 
Sulphur under command of Captain Sir Edward Belcher. The 
Sulphur was in the Bay of San Francisco in the autumn of 1837, 
and two years later visited San Diego. The botanical discoveries 
of the voyage were published by Dr. Hinds and Mr. Bentham 
in 1844 in a work entitled The Botany of the Voyage of H. M.S. 
Sulphur. Hindsia, a genus of Brazilian plants established by 
Bentham, recalls his name to botanists. 
EXPLANATION OF THE PLATE. 
Puate LXIV. CEANOTHUS THYRSIFLORUS. 
WHARDAP HOD 
ee 
rPonDH oS 
. A fruit, enlarged. 
. A flowering branch, natural size. 
. Diagram of a flower. 
A flower, enlarged. 
. Vertical section of a flower, enlarged. 
. A stamen, enlarged. 
An ovule, much magnified. 
. A fruiting branch, natural size. 
. Cross section of a fruit, enlarged. 
. A fruit, the nutlets detached, enlarged. 
. A nutlet, enlarged. 
. Vertical section of a nutlet, enlarged. 
. Vertical section of a seed, enlarged. 
An embryo, much magnified. 
