JUGLANDACEAE 
69 
SIMARUBACEAE. QUASSIA FAMILY 
Shrubs or trees with alternate (rarely opposite) pinnate leaves. 
Flowers unisexual, regular. Sepals and petals 3 to 5. Disk prominent, 
10-lobed; stamens 6 to 10. Fruit drupe-like or forming a berry or 
samara.—Species 140, chiefly tropical. 
1. AILANTHUS Desf. 
Large trees. Leaves alternate, odd-pinnate. Flowers small, in large 
terminal panicles, polygamous, the staminate very ill-scented. Fruit of 
1 to 5 distinct oblong samaras, with the compressed seed in the middle. 
(Ailanto, a Malakka name, meaning Tree of Heaven.) 
1. A. glandulosa Desf. Tree of Heaven. Tree 9 to 17 m. high; 
leaves 4.3 to 5.7 dm. long; leaflets with 2 to 4 coarse teeth near the base, 
each with a large gland beneath; samaras 3.6 cm. long.—Cult, from 
China. It is the only exotic tree in California which is markedly spon¬ 
taneous. It has in some localities become a pest as a tree weed. 
MELIACEAE. MELIA FAMILY 
Trees and shrubs with alternate often pinnate leaves. Flowers small. 
Sepals 4 or 5. Petals 4 or 5. Stamens 8 to 10 and with filaments united 
into a tube which is entire or lacerate. Fruit a capsule or berry.—About 
600 tropical species. 
1. MELIA L. Pride of India. China Tree 
Leaves twice compound. Leaflets ovate and sharply toothed. Flowers 
purplish, in large compound panicles. Fruit a berry-like drupe with a 
bony 5-celled stone. (Old Greek name of the Ash Tree.) 
1. M azederach L. var. umbraculiformis Berckm. Texas Umbrella 
Tree. Tree 8 to 11 m. high, very dense-headed and umbrella-like by 
reason of the radiating branches and drooping foliage; berry yellowish.— 
Cult, from Asia as a street tree in the hot interior valleys. 
JUGLANDACEAE. WALNUT FAMILY 
Trees with alternate pinnate leaves. Staminate and pistillate flowers 
on the same plant, the former in catkins with an irregular calyx and 
several stamens, the latter solitary or 2 or more in a cluster with a 3 to 
5-lobed calyx, the tube of which is adherent to the ovary. Fruit a bony 
nut covered by a husk.—About 35 species in the north temperate zone, 
including many species of Carya (Hickory, Butternut and Pecan.) 
1. JUGLANS L. Walnut 
Branchlets hollow, chambered by pithy plates. Leaflets many. Stami¬ 
nate catkins long and pendulous; stamens 12 to 40. Pistillate flower with 
a 4-toothed calyx, 2 styles and a 1-celled ovary. Nut incompletely parti¬ 
tioned, containing a single sweet edible seed so lobed as to fit the irregu¬ 
larities of the cavity. (Latin Jovis, Jupiter and glans, nut.) 
Leaflets 9 to 25 ; husk, when dry, persistent on the thick-shelled nut. 
Nuts deeply grooved.L /• californica. 
Nuts obscurely or not at all grooved.2. /. hindsii. 
