334 78. AMENTIFEE^. 



scales and the shape of the 1. distinguish this from the next. — 

 Bather common. T. IV. V. White Birch. E. S. I. 



2. J}.fflictindsa(Fnesl); l.rhomhoid-ovate or cordate unequally 

 serrate acute, scales of the fem. catkins 3-lobed, latei-al lobes as- 

 cending, fr. broadly ohovate. — Sy. K B. 1296. B. alba R. xii. 623. 

 B.pubescens Koch. — L. usually glabrous, alwaysmore or less ovate, 

 flat above with raised veins beneath. Stip. ovate, blunt, twice 

 as long as broad ; sides deflexed. Buds ovoid. Not so elegant 

 a tree as the preceding and often little more than a bush. Twigs 

 sometimes pendulous. — /3. B. pubesceiis (Ehrh.) ; 1. peduncles 

 and young twigs downy. — Common. T. IV. V. Common 

 Birch. E. S. I. 



3. B. ndna (L.) ; I. roundish crenate glabrous blunt, scales of 

 the fem. catkin digitate-trifid, lobes equal, fr. orbicular with a 

 veiy narrow membranous margin. — E. B. 2326. — A small pro- 

 cumbent shrub. L. minute. Catkins subsessile, small. — Turfy 

 places in the Highlands. Sh. V. Dwarf Birch. S. 



5. Al'ntjs Tourn. Alder. 



1. A. glutindsa (Gaert.) ; 1. roundish blunt wavy serrate 

 glutinous rather abrupt with a wedgeshaped base, axils of the 

 veins beneath downy.— ^. B. 1508. R. xii. 641. St. 29. 15. 

 — A moderately large tree. Trunk and branches crooked. 

 Male catkins long and pendent ; fem. ones short, ovoid or oblong, 

 very persistent. — /3. incisa ; leaves deeply cut. — Wet places and 

 river-banks. |3. Wigtonshire. Dr. Balfour. T. III. E. S. I. 



Tribe IV. CupulifertB. 



6. rA'sTTS Liim. Beech. 



1. F. sylvat'ica (L.) ; 1. ovate glabrous obscurely dentate ciliate 

 on the edges. — U. B. 1846. B,. xii. 639. — A large tree with 

 triquetrous fruit. — Woods, paitioijlarly on calcareous soils. T 



m. IV. E. 



7. Casta'nba Tourn. Chestnut. 



[C. vulffdris (Lam.); 1. oblong-lanceolate acuminate mu- 

 cronate-serrate glabrous on each side. — Fagns Sm., F. B. 886. 

 B. xii . 640. — Height 50 — 80 feet. A magnificent tree. — A very 

 doubtful native. T. V. Sweet Cftestnut.} E. 



