350 DIOKCIA — Tn IAN Dili A. [Empehtim. 



27. CoRYLUs. Linn. Ilastl-nut. 



1. C. Avelld/m, L. {common Ilasel-tiut); stipules oblong obtuse, 

 leaves roundish cordate pointed, involucre of the fruit campanu- 

 late rather spreading torn at the margin. E. But. t. 723. 



Hedges and copses, abimdaiit. FL March, Apr. Tj . — The wood of 

 Hascl is employed for a number of domestic and agricultural purposes, 

 and makes an excellent charcoal for drawing. The nuts are well known 

 at our tables. The young forked twigs of this plant constitute the cele- 

 brated divining-rod, (vbyjula d'lvinaturia) : for an account of which see 

 No. 44. of the Qimrtejh/ Review. From the Anglo-Saxons we have 

 derived our word Hasel-nut, which they called Hasel-nutu, from Hasel 

 a cap, and Knutu, a nut. 



MONOECIA— MONADELPHIA. 



28. PiNUs. Linn. Fir. 



1. P. sf/lvestris, L. (Scotch Fir); leaves in pairs rigid, cones 

 conico-ovate acute young ones stalked recurved as long as the 

 leaves generally in pairs, crest of the anthers very small. E. 

 Bot. t. 2460. 



Highlands of Scotland, where it constitutes vast natural forests. Ft. 

 May, Jiuic. 1/. — A tree of great value but little beauty, except indeed 

 when it grows in large masses, as in some of the Highland forests. It 

 affords the red or yellow deal. A plank from the largest tree that was 

 cut down in the Duke of Gordon's forests of Glenmore, was shown to 

 me by the late Duke at Gordon Castle ; it measured bh feet in diameter. 

 The bark has been used with much success in tainiing, and in the north of 

 Europe is made into a wretched substitute for bread. Tar, pitch, and 

 turpentine are the produce of this tree ; and in the Highlands, the resin- 

 ous roots, dug up in the bogs, afford a succcdaneum for candles. 



CLASS XXII. DIOECIA. Stamens and pistils in 

 separate flowers and on different plants, 



(MoNANDuiA. 1 Stamen. For some Salices see Ouu. II.) 



ORD. I. DIANDllIA. Stamens 1—5, mostly 2. 



1. Salix. Barren fl. Scales of the catkin single-flowered, 

 imbricated, with a nectariferous gland. Perianth (). Stam. 1 — 5. 

 — Fertile fl. Scales of the catkin single-flowered, imbricated, 

 with a nectariferous gland. Perianth 0. Stiymas 2, often cleft. 

 Caps. 1 -celled, 2-valved, many-seeded. Seeds comose. — Nat. 

 Ord. Amentace/e, Juss. — Named from sal, near, and lis, water, 

 in Celtic. 



ORD. II. TRIANDRIA. 3 Stamens. 



2. Empetrum. Barren fl. Perianth, many imbricating scales, 

 of which the 3 inner are often regular, spreading and petaloid. 



