578 DR. M. T. MASTERS: GENERAL VIEW 
It never forms separate forests, but grows halfway up the moun- 
tains intermixed with deciduous trees (Faurie in herb. Paris). 
2. Pinus parvirtora, Siebold & Zuccarini. 
A well-known Japanese species, sometimes referred to the 
section Cembra, but the resin-canals are marginal. 
The young shoots, in the cultivated trees, are usually hairy, 
destitute of leaves at the base, and possess a double ring of resin- 
canals in the cortex. The buds are cylindric-obtuse with lanceolate 
brown scales. The three-sided leaves have a circular meristele 
and an undivided vascular bundle. The dorsal side is flattish or 
slightly convex, green, without stomata, the two lateral faces 
slightly concave, glaucous. The resin-canals are marginal, with- 
out a sheath of stereome-cells. The endoderm-layer consists of 
about 20 cells. Cotyledons 8-10. In cultivation it produces 
abundance of Cembra-like cones. 
In addition to the older literature cited in the text-books it 
may be well to cite the more recent publications of Mayr, Monog. 
Abiet. Japan. (1890) p. 76, t.5, and Syme in Gard. Chron. (1878) 
p- 624, f. 103. 
3. P. Lampertrana, Douglas; Sargent, Silva, xi. (1897) p. 27, 
t. 542. 
The history of the discovery of this noble Pine is given in a 
communication from Douglas in the ‘ Companion’ to the Bota- 
nical Magazine, ii. pp. 92 & 130 (1836). The species had been 
already published in the Transactions of the Linnean Society, xv. 
p- 500 (1827). The type-specimen is in the Kew herbarium. 
The resin-canals in the primordial leaves are marginal (Pl. 23. 
fig. 9), the endoderm is feebly developed, and the fibro-vascular 
bundle unbranched. In the adult leaves the canals are sometimes 
median, sometimes marginal, the endoderm-cells well-developed, 
about 28-32, and the fibro-vascular bundle branched. See J. 
D. Hooker, in Gard. Chron., Jan. 3 (1885), p. 15, f. 1. 
‘The stomata occur on all three of the leaf-surfaces. The bracts 
of the male flower are 8-10 in number, according to Sargent. 
Cotyledons 12-15. 
4. P. stroBirorMis, Engelmann; Sargent, Silva, xi. (1897) 
p- 33, tab. 544. 
P. Ayacuite, Parlatore pro parte. 
This species is distinguished from P. Ayacuite, by Sargent, on 
“ha / 
