596 DR. M..T. MASTERS: GENERAL VIEW 
iv. p. 418, is also referred here, but the description 1s even more 
incomplete. 
Lemmon and Sargent place the Pinus insignis of Don (1838) 
under this heading. P. tuberculata of D. Don (1836) (not of 
Gordon) is also considered identical with Don’s P. radiata. 
Carritre, Traité Général, ed. 2 (1867), p. 440, arranges the 
species thus :— 
““P. insignis, Douglas ex Loudon Arboretum, iv. 2265, et 
auct.” Var. macrocarpa, Hartweg, Journal Hort. Soe. iil. p. 226 
=P. radiata, Don et auct. 
The variety differs from the species by the cones, which are 
a little larger, whilst the apophyses are more developed and 
turned down towards the base of the cone. In British gardens 
the tree is found to do well near the coast, but there are difter- 
ences in habit and in degree of hardihood which suggest the 
existence of distinct varieties, if not of the existence of two 
species under one name. 
To Dr. Franceschi I am indebted for a-specimen of the var. 
binata from Guadeloupe Island, off the S. coast of California. In 
this variety there are but two leaves to the tuft. See Watson, 
Proc. Amer. Acad. xi. p. 119 (1876), and Bot. Calif. ii. p. 128. 
The seedling plants are distinct in character, and show forecasts 
of the future habits of the tree, its bushy habit when young 
being indicated by the numerous side-shoots that spring from 
the young plant just above the cotyledons, whilst the bare trunk 
of adult years is indicated by the long unbranched stem, which 
the seedling plant at first presents. The primordial leaves are 
very long and narrow, and, at rather wide intervals, finely toothed 
at the margins. As has been said, the young stem acquires 
considerable length (6 to 8 inches) before the primary leaves are 
replaced by the tufted leaves characteristic of the tree at a more 
advanced stage. The seedlings are strongly tap-rooted, with hori- 
zontally-spreading side branches. The leaves are three-sided, with 
stomata on all sides, and with a layer of thin-walled water-cells 
beneath the epidermis. The hypoderm is in one layer with 
occasional thickenings. The cortical cells have infolded walls, 
and the resin-canals are median and surrounded by stereome- 
cells. The endoderm-cells number about 30-40; the meristele 
is oblong, or somewhat triangular, with a branching fibro- 
vascular bundle. 
Lhe cotyledous vary from 6-9 in number. 
