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MYRICA 
Professor Bottomley (in Ann. Bot. xxvi, 116 (1912)) states that the swollen root-branches of Myrica gale contain fungal 
filaments, and that these are identical with the organism of the root-nodules of Leguminous plants. 
Locally abundant on wet siliceous and rather peaty hill-slopes and on lowland peat-moors ; 
rather common on transitional moors ; rather rare on fens and on strongly acidic moors. Cornwall 
and Kent to Orkney, but absent from most counties of the southern Midlands; ascending to 550 m. 
in the Highlands of Scotland ; Ireland, every county except Carlow and Dublin. 
Scandinavia (northwards to 68° 53' N. lat.), Denmark, Germany, Holland, Belgium, France, 
northern Russia, Portugal, north-western Spain; central Asia to Kamtchatka ; North America. 
Order 3. # J UG LAN DALES 
Juglandales Engler Syll. 93 (1892) excluding Myricaceae ; in Pflanzenfam ., Nachtr. 345 (1897). 
Allied on the one hand to Myricales, and, on the other, to the hemi-epigynous Fagales. 
For characters, see page 3. Only family : — *Juglandaceae. 
Family 1. *JUGLANDACEAE. 
Juglandaceae Lindley Nat. Syst. ed. 2, 180 (1836); Ascherson und Graebner Syn. iv, 355 (1910). 
Trees. Leaves alternate, pinnate, exstipulate. Catkins monoecious and diclinous. Flowers wind- 
pollinated. Staminate catkins long and pendulous. Perianth irregularly lobed, adnate to the bract. 
Stamens 3 — 00. Anthers erect, with 2 loculi dehiscing longitudinally. Filaments short. Pistillate 
catkins reduced to a few flowers, sessile. Perianth with 3 — 5, usually 4 segments, adnate to the 
ovary. Ovary bicarpellary, with 2 — 4 incomplete loculi, 1 -ovular. Stigmas 2. Ovules orthotropous. 
Placentation basal. Fruit a pseudocarpous “drupe,” the husk being the persistent and enlarged 
perianth, enclosing the hard nut with 2 — 4 incomplete loculi. Endosperm absent. Integument single. 
Six genera ; 40 species ; north temperate and tropical Asia. 
Only British genus : — *Juglans. 
Genus 1. # Juglans 
Juglans L. Sp. PI. 997 (1753) et Gen. PI. ed. 5, 431 (1754); Engler in Engler und Prantl Pflanzenfam. 
iii, pt. i, 24 (1894). \Nux Tournefort Inst. 581, t. 346 (1719).] 
Trees, odorous. Laminae unequally pinnate. Perianth of the staminate flowers, 3 — 6 lobed, 
of the pistillate ones 4-partite. Stamens 8 — 40, in 2 series. Styles very short. Stigmas 2, large, 
fimbriate. Pseudo-drufle large, with pseudexocarp rather fleshy, indehiscent. Nut with 2 — 4 imperfect 
loculi at the base, indehiscent or separating into 2 parts on drying. Cotyledons of seedlings epigeal. 
About 8 species ; north temperate, West Indies, South America. 
Only British species : — *J. regia. 
1. * JUGLANS REGIA. Walnut 
Nux juglans Gerard Herball 1252 (1597); Ray Syn. ed. 3, 438 (1724). 
Juglans regia L. Sp. Pt. 997 (1753)!; Ascherson und Graebner Syn. iv, 359 (1910). 
Tree, about 25 — 30 m. high. Leaflets 5 — 13; scarcely stalked, lateral ones entire (except in 
the seedling, where the leaflets are serrate), glabrous. Stamens about 14 — 26. Stigmas large. 
Cultivated in the lowlands of England, and occasionally planted in semi-natural situations ; rarely escaping 
from cultivation, and springing up from self-sown seed, as, for example, in Suffolk and Norfolk. 
Indigenous in south-eastern Europe, and in western and central Asia, and perhaps in China and Japan. 
Cultivated and more or less spontaneous elsewhere, occurring at 12 66 m. in the Tyrol. 
