192 JOURNAL OF THE ARNOLD ARBORETUM [vol. i 



A typo recedit habitii erecto, ranaulis brevibus congest is apice plcrlsque 

 recurvls, follis deiisissime iinbricatis latiorlbus et paulo breviorlbus, late 

 lanceolatis vcl ovato-lanceolatis 4^5 mm, longis et basi 1,5 mm. latis dorso 

 vix sulcatis, 



China. Western Szechiian: neigliborliood of Tachien-lu, alpine 

 regions, alt, 3000-5000 m., July and September, 1908, E. 11. Wilson 

 (No. 985, in part); west and near Wen-cliiian Ilsien, moorlands, alt. 3000- 

 4300 m, September, 1908, E. II. Wilson (No. 985, in part); west of Kuan 

 Hsien, Pan-lan-shan, alpine moorlands, alt. 4000-4600 m., October, 1910, 

 E. II, Wihon (No. 4085). Western Hupeli: Fang Hsien, Ta-pa-shan, 

 moorlands and open rocky country, alt. 3O0O-3G0O m., May 16, 1907, E. 

 H. Wilson (No. 985, in part). Shensi: Tai-pel-shan, 1910, W. Purdom. 



This is apparently only an ecological form which may pass according to 

 altitude and exposure gradually into the typical prostrate form, but occa- 

 sionally attains 2.5 m, in height. As cultivated at the Arboretum it looks 

 very difTerent from the typical form assuming the shape of conical bushes 

 consisting of several stems close together with the short crowded branch- 

 lets usually recurved at the tips. The leaves are shorter and broader than 

 in the type and more closely imbricate. The tree form, J. squamata var. 

 Fargesii Rchdcr & Wilson, is easily distinguished, even as a small plant, 

 by the longer and slenderer leaves and the upright or spreading tips of the 

 branchlets. The plants in cultivation were raised from seed sent by E. II. 

 Wilson from Wen-chuan Hsien and from Pan-Ian -shan in western Szechuan 

 in 1909 and 1911. A picture of this shrub will be foimd under No. 238 of 

 the collection of Wilson's photographs and in liis Vegetation of Western 

 China, No. 265. 



Picea glauca Voss var. albertiana Sarg, f. conica, forma nova. 



A tyi)o varietatis recedit hal)itu anguste conico, ramulis brevibus tenui- 

 busque dense congestis in sulcis saepe sparse pilosis, foliis radiatim patenti- 

 bus tenuil)us 0.5-0.75 mm. crassis et circiter 1 cm. longis plcrumque cur- 

 vatis apice In mucronem longum attenuatis, perulis basilaribus gemmae 



terminalis non ciliatis. 



Cultivated at the Arnold Arboretum, grown from seedling plants col- 

 lected near Laggan, Alberta, In 1904 by J. G. Jack, Type specimens col- 

 lected November 3, 1919, preserved in the herbarium of the Arboretum. 



This very peculiar form of the Western White Spruce is of slow gro^i-th 

 and forms dense bushes of narrow conical shape consisting of closely packed 

 thin and short branchlets, whicli are light yellowish gray during their first 

 year and glabrous or sparingly hairy in the furrows between the pulvinl. 

 The leaves are very difTerent from the type and very characteristic; they 

 are radially' disposed around the stem, thin and slender, less tlian 1 mm. 

 thick and 0,8-1.2 cm. long, narrowed into a long and slender spiny point and 

 more or less curved; the four stomatiferous bands consists of 1-3 more or 

 less interrupted lines and are not conspicuous. The winter buds are 

 brown and but slightly resinous, the scales are usually rounded at the apex 



