388 
78. AMENTIPEE-S. 
Tribe II. Myricea'. 
3. Mybi'ca Linn. Sweet CTiile. 
1. M. Gale (L.) ; 1. lanceolate broader upwards serrate, st. 
shrubby.— B. 562.— Height 3—4 feet. Bushy. Catkins 
sessile erect. Fr. with resinous glands. L. fragrant when 
bruised.- Bogs. Sb. V. Bog Myrtle. E. S. I. 
Tribe III. Betulivea'. 
4. Bet'ula Lirm. em. Mill. Birch. 
1. B. al'ba (L. em., Koch) ; 1. rhomboid-triangular doubly 
serrate abruptly acuminate, scales of the fem. catkins 3-lobed, 
lateral lobes falcate-refiexed, fr. obovate. — Fl. Dan. 2549. Sy. 
E. B. 1295. B. verrvxosa (Ehrh.). B. odorata E. xii. 626.— L 
usually glabrousof ten covered with resinous spots above, always 
having a manifest tendency to a rhomboidal form, fiat beneath 
with raised veins above. Young shoots mostly with resinous 
tubercles, often very long and pendulous. Stip. ovate-lanceolate, 
acute, thrice as long as broad, circinate ; sides not deflexed. 
Buds conical. The catkin-scales and the shape of the 1. dis- 
tinguish this from the next. — Rather common. T. fV. V. 
White Birch. E. S. I. 
2. B. 2^ubes'cens (Ehrh. em., Koch) ; 1. -rhomboid-ovate or 
cordate unequally serrate acute, scales of the fem. catkins 3- 
lobed, lateral lobes ascendiiuj, fr. broadly obovate. — Sy. E. H. 
1296. R. xii. 623. B. ylutinosa (Fr.). — L. usually glabrous 
[var. glabrdta (Wahl.)] always more 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 us 
the preceding and often little more than a bush. Twigs some- 
times pendulous. — /3. vestita (G. & G.) ; 1. peduncles and young 
twigs downy. — [Var. parvlfoUa (Hegel) is a northern form with smaller 
often cunoate-based Land erect catkins.] — Common. T. IV. V. Common 
Birch. E. S. I. 
3. B. intermedia (Thom.) ' ; 1. broadly-rhomboidal acute 
dentate, catkins erect with 3-lobed scales, the lateral lobes 
rounded porrect broader than interm. lobe, fr. with margin 
equalling its breadth. — R. xii. (;24.— Asmall tree, 6—15 ft. high. 
L. small. Catkins stalked.— Glen Callatcr. S. 
4. B. nana (L.) /. roundish crenute glabrous blunt, .scales of 
the fem. catkin digitate-trifid, lobes equal, fr. orbicular with a 
' Usually considered a fur:n of B. alba x.pubesf.em'. — A. J. \V. 
