1920] WILSON, FOUR NEW CONIFERS FROM KOREA 189 



similar but less rough bark, longer leaves with median resin-ducts and the 

 bracts of the cone are included; Abies sachalinensis has a cone with exserted 

 reflexed bracts but is greenish purple in color; the leaves have median resin- 

 ducts and the bark is perfectly smooth with prominent resin pustules; 

 Abies Veitchii has a similar habit and leaves with lateral resin-ducts, but 

 in this species the bark is always smooth and the bracts of the cone-scales 

 are shorter or only slightly longer than the scales. The new species is cer- 

 tainly very distinct and its very rough bark is unique among the species 



of its group. 



Abies koreana Wils. is an alpine species and on Hallai-san is abundant 

 above altitudes of 1000 meters, either forming pure woods or mixed with 

 Betula Ermani Cham., but the trees are not large. On Chiri-san, on the 

 mainland, it is common above 1200 meters to the summit (1850 meters), 

 growing with mixed deciduous leafed trees and Picea jezoensis Carr,, and 

 there the trees reach their maximum development. From youth to middle 

 age it is a handsome tree, densely branched and with its lower branches 

 sweeping the ground; the habit is rather broadly pjTamidal, and the lus- 

 trous green leaves with their white undersurfaces add character to the tree. 

 It produces cones rather freely but less so than A. nephrolepis Maxim. 

 Old trees are scrawny and not attractive. Dr. T, Nakai confused this 

 species with A. nephrolepis Maxim., but when traveling together on Hallai- 

 san I pointed out differences and he readily concurred that the two were 



quite distinct species. 



Pere U. Faurie was the first to discover this Fir, and his specimens to- 

 gether with those of Pere Taquet have been for some years in this her- 

 barium unnamed. When studying the Chinese Firs for Plantae Wilsoni- 

 anae and those of Japan for my Conifers and Taxads of Japan I noted the 

 difference of the Quelpaert plant and in 1917 visited the island to study the 

 living tree. I was able to secure a supply of seeds of this Fir which were 

 sent to the Arnold Arboretum where plants are now growing. 



Abies nephrolepis f. chlorocarpa Wilson, forma nov. A typo recedit 

 colore viridi strobili, marglne superiore squamarum tantum leviter 

 violaceo-purpurea. 



Korea: prov. Kogen, Kongo-san, round Yutenji Monastery and on Mt. Mlroku- 

 ho. alt. 600-1600 m. July 7» 1918, £. H. Wilson (No. 10,509). 



This variety only differs from the type in the color of the cone w^hich is 



green with the upper edge of the cone-scale faintly tinged with violet- 

 purple. It is common where it grows mixed with type. This is the third 

 instance of a green-coned variety among the species of Abies of the Orient 

 with typical violet-purple colored cones — the others being Abies homolepis 

 var, umbcUata Wils. and Abies Veitchii var. olivacea Shiras, I collected 

 seeds in the autumn of 1918 of this new variety and a stock of young plants 

 are now growing in the Arnold Arboretum. 



Larix dahurica var. Principis-Rupprechtii f. viridis Wilson, forma nov. 

 A typo recedit strobilis viridibus plerisque majoribus. 



