702 Proceedings of the Royal Irish Academy. 



It is certain that this species was sent home by Douglas, as it has 

 long been cultivated in the Edinburgh Botanic Garden, under the 

 name of robusta, the plant being a layer of Douglas's unique specimen. 

 It was also sent by Jeffrey, who called it amabilis, Douglas, and I have 

 no doubt whatever that Jeffrey was perfectly right in so naming it.*^ 

 The cone is exactly like that of P. lasiocarpa, Hook, (bifolia, Murray) ; 

 and one of the specimensnamedinthe Edinburgh Museum "P. magnifica 

 robusta, 1480, Oregon, Mr. Jeffrey, 1853," is bifolia of Murray. It 

 has also been sent to Low by Mr. Lobb, and described by Mr. Murray 

 under my father's MSS. name of magnifica. 



3. Pinus {Pseudotsugd) Bavidiana, Bertrand, Anat. Compar. des Gnet. 



et des Conif. p. 82. 



This species is from Thibet, and is described by Bertrand, but I 

 have not seen it. According to Bertrand it is allied to Pinus Fortunei, 

 but has stomata on both sides of the leaf. 



4. Pinus {Pseudotsuga) Fortimei, Parlatore, D. C.Prod. p. 430, ]S"o. 112. 



Abies Fortimei, A. Murray, Proc. Hort. Soc. Lond. iii. 421 

 (1862). Pseudotsuga Jezoensis, Bertrand, op. cit. p. 83. Picea 

 Jezoensis, Carr. (?) 



Shoots hairy. Leaves inserted singly all round the stem, scattered, 

 fonning two lateral rows. Leaf linear, tv^'isted above the base, widest 

 above the twist, remaining tolerably uniform until about \ of length 

 from apex, then narrowing into a sharp projecting point ; upper sur- 

 face dark-green, with no stomata (rarely a few near the apex of 

 certain leaves), beneath with a band of stomata on each side of the 

 midrib, there being about 16 rows of stomata in each band. Leaves 

 from f to 1 inch in length, and about ^ inch wide. Buds (?) 



Transverse section of leaf. — Leaf flattened, about five times 

 broader than thick, sides rounded, slightly angular near resin-canal, 

 upper side nearly fiat, or slightly concave, below with a slightly pro- 

 minent midrib. Hypodenna well developed, forming an interrupted 

 band i-unning fi'om the resin-canal of one side, under the epidermis 

 of the upper surface, to the resin-canal of the other side : a cluster of 

 hypoderm cells below the midrib. The resin-canals are placed, one 

 at each side of the leaf, close to the epidermis of the under surface, but 

 separated from it by a layer of thick hypoderm cells. The pallisade 

 parenchyma is well developed on the upper side, and below is paren- 

 chyma with intercellular spaces communicating with the stomata. 



Eibro-vascular bundle single, but sometimes divided into as many 

 as six small portions. Bast cells developed below, and the whole sur- 

 rounded by a tolerably evident sheath. 



The figure (Plate 49, fig. 31) is di'awn from a specimen kindly 



* See Trausactious Edinburgh Botanical Society, xi,, p. 326. 



