Hknrv and Flood — The Douglas Firs. 77 



Leaves pecliiiate, bifid at the apex, 1 to 1^ inch l<Jiig; upper surface 

 deeply grooved from base to apex ; lower surface with a wide raised iiii(h'ib 

 and two narrow white bauds, each of 7 to iS lines of crowded minute stomata. 

 A transverse section shows the edges of the leaf to be pointed and turned 

 slightly down; proportion of width to thickness as 3"4: 1 ; epidermal cells of 

 tlie lower surface papillate ; hypoderm nearly continuous all round the leaf : 

 idioblasts numerous ; resin-canals with one layer of lining cells ; cell-walls of 

 the spongy mesophyll infolded. 



Cones about 2 inches long and 1 j inches wide, of few scales (about 20) in 

 -p^-j phyllotaxis, and short retiexed bracts. Scales large, thick, woody, about 

 1\ inches wide; uppe)- margin rounded, with a slightly bulging apical part; 

 exposed part of the scale much wider than in F. Forrcslii. Bracts sliorter 

 than the scale, reHexed near the summit, with long central awn and two short 

 lateral lobes. Seed not seen, described as 4- to 1 inch long, inclusiN'e of the' 

 long narrow-pointed and striated wing. 



This species is a rare tree in China, where it has been found by Pere 

 Maire growing on limestone at 8,500 feet elevation in north- eastern Yunnan at 

 Che-hai and Tung-chuan. Seedlings were raised in 1912 by M. Chenault at 

 Orleans, and one of these had attained at Leonardslee about 2i feet high in 

 1918. 



Pseudotsuga Wilsoniana, Hayata, in Icon. Plant. Formos., v. 204, t. 15 (1915). 



This species is a native of Formosa, where it is recorded from one locality 

 only, Mount Morrison, at 9,000 feet altitude. It is not represented in 

 European herbaria. Judging from the description and figure, it diflers but 

 little from Fseudotsiuja sinensis, agreeing with the latter in the pubescent 

 branchlets and bifid short leaves. The cone is similar in the shape of the 

 scales, and in the short reflexed bracts.^ 



Pseudotsuga Forrestii, Craib, in Notes li. Bat. Garden, Fdinbutyh, xi, 189, 



plate 160 (1920). 



This tree attains 60 to 80 feet in height. Branchlels with scattered 

 minute rigid hairs, which are somelimes absent; pu]\ini slightly pidjcLiing 

 at their apices, and with translucent edges due lo the resin-canals. 1'he 

 branchlets appear to be reddish brown at first, becoming grey in the second 

 and third years. Buds slightly resinous. 



Leaves pectinate, bifid at the apex, the largest in the genus, up lo nearly 

 2 inches in length ; upper surface with deep median groove from base to apex ; 



' Specimens of bi'iiiches with cones of this species have been very recently received 

 by Professor Henry fioiu Mr. R. Kanehini, of the Foiinosau Forest Service. 



