254 THE BOOK OF EVEEGEEENS. 



pungent at the points, a double channel above and below, 

 partly tetragonal, (Nuttall.) Leaves, long, narrowly lin- 

 ear, thin carinated above and below, more slender and 

 delicate than those of any other species, light yellowish 

 green, (Newberry.) Branches short and small. Cones, 

 ovoid, H inch long, reflexed ; scales shortly ovoid, trun- 

 cated or broadly emarginate, edges thin, membranaceous; 

 bracts half an inch long, imperfectly elliptical, fringed, 

 terminating in a long awn. 



This species was first detected by Nuttall, on the west- 

 ern slopes of the Rocky Mountains towards the Oregon. 

 A very closely allied form, differing only in the leaves, 

 was afterwards found by Dr. IsTewberry, and although 

 with some misgivings described under the same title. The 

 latter discoverer " first met with this Larch on the Des 

 Chutes River, near its head, lat. 43 40' 1ST.; from that 

 point it extends northward to, and beyond, the Columbia." 

 " It grows scattered along the borders of the streams, ris- 

 ing to a height of 150 feet, with a diameter at base of 2 or 

 3 feet," 



We do not think this species is in cultivation, but have 

 no doubt but what it would prove entirely successful with 

 us in the Middle States. 



NEW SPECIES OF LAEIX. 



7. L. Japonic a, Murray. JAPAK LAECH. "Closely 

 allied to L. leptolepis, but differing in the following par- 

 ticulars, viz.: The leaves are longer, being from 10 to 18 

 lines in length. Pulvini, not equally thick throughout, 

 reddish-brown. Cones, smaller, the ordinary size being 8 

 or 9 lines in length, and 5 in diameter. Scales, very con- 

 cave, disposed in 5 rows, instead of 8 rows, which from 

 Siebold's figure, appears to be the number on L. leptolepis^ 

 and about 25 in number. Bracts, elongated and truncate, 

 with a projecting tooth at the apex. Seeds and wings, 



