308 77. AMENTIFER.E. 



always more or less ovate. Stip. ovate, blunt, twice as long as 

 broad; sides deflexed. Buds ovate. Not so elegant a tree as 

 the preceding and often little more than a bush. Twigs some- 

 times pendulous. [3. B. pubescens (Ehrh.) ; 1. peduncles and 

 young twigs downy. Common. T. IV. V. Common Birch. 



3. B. nana (L.) ; I. roundish crenate glabrous, crenatures ob- 

 tuse, scales of the fern, catkin digitate-trifid, lobes equal, fr. or- 

 bicular with a very narrow membranous margin. E. B. 2326. 

 A small procumbent shrub. L. minute. Catkins subsessile, 

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



5. ALNUS Tourn, Alder. 



1. A. glutinosa (Gaert.); 1. roundish obtuse wavy serrate 

 glutinous rather abrupt with a wedgeshaped base, axils of the 

 veins beneath downy. E. B. 1508. R. xii. 631. St. 29. 15. 

 Trunk and branches crooked. Male catkins long and pendent ; 

 fern, ones short, ovate or oblong, very persistent. A moderately 

 large tree. fS. incisa ; leaves deeply cut. Wet places and river- 

 banks. /3. Galloway. S. Dr. Bat/our. T. III. 



Tribe IV. Cupulifera. 

 6. FAGUS Linn. Beech. 



1 . F. sylvatica (L.) ; 1. ovate glabrous obsoletely dentate ciliate 

 on the edges. E. B. 1846. R. xii. 639. A large tree. Woods, 

 particularly on calcareous soils. T. III. IV. 



7. CASTANEA Tourn. Chestnut. 



fl. C. vulgaris (Lam.) : 1. oblong-lanceolate acuminate mu- 

 cronate- serrate glabrous on each side. Fagus Sin., E. B. 886. 

 R. xii. 640. Height 5080 feet. A magnificent tree. A doubtful 

 native, often planted. T. V. Sweet Chestnut. E. 



8. QUERCUS Linn. Oak. 



1. Q. Robur (L.) ; 1. deciduous stalked obovate-oblong sinuate, 

 lobes blunt, inv. much shorter than the ripe nut its scales ad- 

 pressed. a. Q. pedunculata (Ehrh.) ; young branches glabrous, 

 petioles short, fr.-catkins long-stalked, fr. scattered. E. B. 1342. 

 /3. Q. intermedia (D. Don) ; young branches glabrous, petioles 

 short, 1. stellate-downy beneath, fr.-catkins shortly stalked, fr. 

 approximate. Mart. Rust. 11. y. Q. sessiliftora (Sin.) ; young 

 branches downy, petioles long, 1. glabrous beneath, fr.-catkins 

 subsessile, fr. approximate. E. B. 1845. It is generally sup- 

 posed by foresters that there are two species of Oak in Britain. 

 I have failed in learning how to distinguish them. Woods. T. 

 IV. V. 



