CONIFERS. 205 



requilatis prope apicem subito deorsurn flexis, partibus flexis 7 mm. longis apice 

 emarginatis vel sagittato-emarginatis ad centrum apicis cuspidatis, cuspidibus 

 2 mm. longis 1 mm. latis acutis fusco-castaneis ; squamis seminiferis mediis 

 obtriangularibus 2 J cm. longis 3^ cm. latis apice latissimis late ^~-^ - formiter 

 rotundatis basi triangulari-obtusis lignosis extus convexo-recurvis intus concavo- 

 recurvis margine subintegris vel plus minus erosis (ad partem latissimam mar- 

 ginalem tenuissimis) fusco-castaneis. Semina cum alis sub-semi-oblonga 2 cm. 

 longa 8-9 mm. lata apice obtusissima vel subrotundata basi rotundato-acuta 

 et oblique breve acuta, latere interiore minus recurva, latere exteriore plus 

 recurva, pagine interiore ad basin alarum fulvo-pubescentia cneteram glabra, 

 pagine exteriore toto glabra. 



Pseudotsuga japonica HAYATA (non SHIRASAWA) in MATSUM. et HAYATA 

 Enum. PL Formos. p 400 ; HAYATA Fl. Mont. Formos. p. 223. 



HAB. Mt. Morrison, ad 9000 ped. alt., leg. U. MORI, Dec. 1908 (fr.). 



This new douglasfir was formerly regarded by several botanists and also 

 by myself as identical with the Japanese species, Pseudotsuga japonica (SHIRA- 

 SAWA). The distinction between the former and the latter was recently suggested 

 by Mr. E. H. WILSON of the Arnold arboretum, who was at that time devo- 

 ting himself to the study and collection of the Japanese conifers. After a care- 

 ful observation on the Japanese species at the native places, the said gentle- 

 man examined attentively the Formosan plant in our herbarium. The points 

 of distinction between the two species indicated by him are, first of all, the 

 dark chestnut-coloured shoots on the Formosan conifer and the pale yellowish 

 shoot on the Japanese ; secondly the buds of the former are elliptical and 

 obtuse at the apex and the bud-scales are conspicuously ciliate, while those of 

 the latter are more or less cylindrical and acute at the apex and the bud-scales 

 are not at all or very faintly ciliate ; in the third place, the shoots of the For- 

 mosan fir are thinly clothed with brownish hairs, but those of the Japanese are 

 perfectly glabrous ; in the fourth place, the seeds of the new species are (wings 

 being taken together) much larger and the wings are more or less rounded at 

 both apex and base, while those of the Japanese are smaller, and the wings are 

 more or less cuneately obtuse at both ends ; and finally the cones of the former 

 are a little larger, usually 4|-6cm. in length, while those of the latter are usually 



