788 PINAOE^ PSBDDOTSUGA 



TSUGA 



in diameter: scales nearly twice as broad as long: bracts not exserted. On 

 the higher parts of the Cascade Mountains. 



A. nobilis Lindl. Penny Cyc. i, 30. A very large tree 200-300 feet 

 high and 3-6 feet in diameter, with spreading branches and somewhat rough 

 dark gray or blackish bark: leaves rigid, acute or obtuse, 1-3 inches long, on 

 the lowest branches and on young trees somewhat 2-ranked, flattish and slightly 

 grooved; on the upper branchlets curved upwai-d and coveiing the upper side, 

 glaucous and keeled on both sides: cones cylindrical-oblong, 5-9 inches long, 

 3-4 inches in diameter, almost covered by the exserted and reflexed cuneate 

 cuspidate-pointed bracts: scales 12-18 lines wide by 13-15 lines long: seed 

 slender, with a cuneate somewhat retuse wing neai-ly as long as the scale: coty- 

 ledons 7 or 8. Common in the high mountains at 4000-6000 feet elevation, 

 Washington to California. 



8 PSEUDOTSUGA Carr. Oonif. ed. 2, 256. 



Large trees with rough dark brown or whitish bark, flat dis- 

 tinctly petioled evergreen leaves, that are stomatose only on the 

 lower side, with 2 lateral resin-ducts close to the epidermis of the 

 lower side, leaving on the branchlets scarcely prominent trans- 

 versely oval raised scars. Flowers monoecious, from the axils 

 of the previous year's leaves. Staminate flower an oblong or 

 subcylindric column surrounded and partly enclosed by numer- 

 ous conspicuous orbicular bud-scales: commissure of the anthers 

 terminating in a short spur; the cells opening obliquely by one 

 continuous slit : pollen grains Ovate-subglobose. Pistillate flow- 

 ers with the scales much shorter than the broadly linear 'acutely 

 2-lobed long-pointed or aristate bracts. Cones maturing the first 

 year, with persistent scales and exserted bracts. Seeds without 

 resin-vesicles. Cotyledons 6-10. 



P. Donglasil Carr. 1. c. A large tree 100-300 feet high and 2-15 feet 

 in diameter: leaves linear, mostly obtuse, 8-18 lines long, but slightly if at all 

 3-ranked, glossy green above, white with a green midnerve beneath: staminate 

 aments oblong -cylindrical, 5-10 lines long: cones oblong to cylindrical, 1-4 

 inches long: scales 10-14 lines wide, broader than long: bracts 2-3 lines wide, 

 more or less exserted, acutely 3-toothed or lacerate at the apex, the prominent 

 midnerve prolonged into a long subulate awn: seed triangulai', convex and red- 

 dish-brown on the upper side," flat and white on the lower side, about 3 lines 

 long, with an oblong usually obtuse wing 3-5 lines long. Common from 

 Alaska to Mexico and the Kocky Mountains. 



9 TSUGA Carr. Conif. 185. 



Large evergreen trees with slender often drooping terminal 

 branchlets and monoecious flowers. Leaves flat or somewhat 

 angled, with a single dorsal resin-duct, conspicuously petioled, 

 articulated upon a prominent and at length ligneous persistent 

 base. Staminate flowers a subglobose cluster of stamens in the 

 axils of last years leaves, the long stipe surrounded by numerous 

 bud-scales: commissure of the anthers terminating in a short 

 spur or knob: anther-cells opening transversely by a continuous 

 slit. Pistillate aments terminal on the previous year's branchlets: 

 bracts somewhat shorter than the scales. Cones maturing the 

 first year, pendulous, the scales and enclosed bracts persistent on 



