a 
OF THE GENUS PINUS. 603 
obtuse, about 2 cent. long. The cones resemble those of 
P. patula, and are subsessile, spreading, about 6 cent. long, 3-4 
cent. broad, oblong-ovoid, tapering to both ends, the apophyses 
prominent, upper border somewhat rounded; umbo stout, pyra- 
midal, mucro deflexed; seed ovoid, much shorter than the 
obliquely oblong wing. 
P. arizonica has been thought to be a form of ponderosa (which 
occasionally has 5 leaves in a tuft), but the young shoots are 
glaucous, and its cones are shorter and thicker (Engelmann). 
48, Pinus cuBENSIS, Grisebach (1863); = P. heterophylla, 
Sudworth (1893), ex Sargent, Silva, xi. (1897) t. 591. 
The first botanist to deal with this plant was Elliott, who, in 
his ‘Sketch of the Botany of S. Carolina and Georgia’ (1824), 
referred it to P. Taeda as var. heterophylla. It is now generally 
acknowledged that it is quite distinct from P. Yaeda, and, 
therefore, it would seem that the next appropriate name, in order 
of time, should be selected, viz. cubensis. This plan, however, 
does not commend itself to the American botanists, who have 
adopted the old varietal name as that of the species. P. baha- 
mensis of Grisebach, P. cubensis var. terthrocarpa, Grisebach, 
and P. Elliotti of Engelmann are all referred here, though not 
without hesitation. The species occurs in the Southern States of 
N. America, in some of the West India islands, and in the forests 
of Central America and Honduras (see Morris, ‘The Colony of 
British Honduras ’ (1883), p. 57; Belt,‘ Naturalist in Nicaragua’ 
(1874), p. 236). The three-sided leaves are in clusters of 2-3, 
with a layer of thin-walled cells beneath the epidermis. The 
hypoderm forms a double layer with projecting wedge-shaped 
masses, and a similar sheath surrounds the resin-ducts. These 
latter are in contact with the meristele, which is elliptic or more 
or less triangular in transverse section, and has a simple or 
(sometimes branched ?) fibro-vascular bundle. The endoderm- 
cells are about 40-48 in number (PI. 20. fig. 3). As in the case 
of P. australis, the bud-scalcs are silvery-white. The male flowers 
are capitate, each flower about 30-40 mill. long, and surrounded 
by oblong coriaceous chestnut-coloured scales with a white 
membranous, slightly fimbriate border. 
I am indebted to Dr. Mellichamp for specimens from 
S. Carolina, in which the catkins are partly male, partly female, 
the female flowers oceupying the upper part of the catkin or 
