M'Nab — A Revision of the Species of Abies. 689 



name I have received it from Messrs. Yeitch, and Mr. FoTvler of 

 Castle Kennedy. Mr. Fowler sends two forms — one marked by him as 

 ■a late variety ; anatomically they are the same, except that the late 

 variety shows great irregularity in the size and position of the resin- 

 -canals, being normal, in the lower half of the leaf, but in the paren- 

 ■chyma, near the apex. 



This species can at once be separated from firma by the presence 

 ■of the remarkable idioblasts as well as by the margin and apex of the 

 leaf. 



Abies homolepis, Sieb. and Zucc, I have not seen, but from Ber- 

 trand's description of the leaf I would consider it a synonym of A. 

 £rma. 



Pinus holophylla, Parlatore ; Abies holophylla, Maxim., is also un- 

 known to me except by Parlatore' s description in D. C. Prod., vol. xvi., 

 pt. 2, p. 424. It is from Mandschuria. 



14. Pinus (Ahies) Sarryana, n. sp. Abies Veitchii, Hort, not descr. 



Shoots smooth. Leaves inserted singly all round the stem, but 

 bent so as to form two lateral rows, a few projecting upwards and 

 downwards. Leaf linear, twisted above the base, widest above the 

 twist, getting gradually narrower, then suddenly contracting near the 

 apex into a sharp, simple, or bifid point ; upper surface bright green, 

 without stomata except in a few rare cases where a small cluster of three 

 or four occur near the apex, beneath with a band of stomata on 

 ■each side of the midrib, there being from 7 to 8 rows of stomata 

 in each band. Leaves from ^ to \\ inch long, and about -jV inch 

 wide. Buds covered with pale brown very resinous scales. 



Transverse section of leaf. — Leaf flattened, about 3^ times as broad 

 as thick, sides rounded, upper surface with a longitudinal furrow, 

 below with a slightly prominent midrib. Hypoderma well developed, 

 forming a slightly interrupted band, extending from the anterior side of 

 the resin-canal of the one side, under the epideiTnis of the upper side 

 of the leaf, to the side of the resin-canal of the other side ; the hypo- 

 derma is also developed under the epidermis of the midrib. The resin- 

 canals are placed, one at each side of the leaf, close to the lower 

 epidermis. The pallisade tissue is well developed on the upper side, 

 and below is parenchyma with well-marked intercellular spaces com- 

 municating with the stomata. 



Fibro-vascular bundle double, the parts placed very close together, 

 and having a large number of bast fibres below ; the fibro-vascular 

 bundles and the bast fibres surrounded by a well-marked sheath. 



The figure (Plate 47, fig. 16) is drawn from a specimen kindly 

 supplied to me by Messrs. Vcitch and Sons, Royal Exotic Nursery, 

 Chelsea, London. 



This sharp-leaved form can be at once distinguished from the 

 obtuse cmarginate-leaved A. Yeitchii. Then their anatomical cha- 

 racters are remarkably distinct. Veitchii iu the Kew Herbarium has 



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