100 RUE FAMILY. 



early summer, later than the leaves, petals and sepals both present, 3 or 2 

 short-styled pistils ; pods not stalked. Sandy coast S. 



4. PHELLODENDRON, COEK TREE. (Greek: corktree) 



P. Amurense, Rupr. A spreading, hardy tree with ash-gray, deeply 

 furrowed corky bark, the inner bark lemon-yellow ; leaflets 2-6 pairs ; 

 general aspect of Ailanthus. Amur region. 



5. PTELEA, HOP TREE. (The ancient Greek name for the Elm, 

 from the resemblance in the winged fruit.) 



P. triiolteta, Linn. THREE-LEAVED H. A tall shrub, with ovate 

 pointed leaflets, and a terminal cyme of small, greenish-white, unpleasantly 

 scented flowers, in early summer ; the orbicular winged fruit bitter. Rocky 

 woods from L. L to Minn, and S. Alao planted, as vars., with variegated 

 or yellow leaves. 



6. SKIMMIA. (Japanese : skimmi, the local name of the first-known 

 species.) Not fully hardy in the Northern States. 



S. Fortune/, Masters. (S. JAPONICA of gardens.) A low, quite hardy shrub, 

 smooth, with oblong and entire, dark green, evergreen leaves, crowded on 

 the end of the branches, which in spring are terminated with a close panicle 

 or cluster of small and white sweet-scented, perfect flowers, of no beauty, 

 but followed by dull crimson, obovoid berries which last over winter. China. 



S. Japdnica, Thunb. (S. OBL\TA and S. FR\GRANS of gardens) . Taller ; 

 flowers polygamous; leaves pale yellowish-green; berries bright red, 

 truncate or depressed, but rarely produced. Japan. 



7. CITRUS, CITRON, ORANGE, LEMON, etc. (Ancient name for 

 citron.') Small trees, native to eastern Asia, grown in conservatories 

 in the north for ornament, and in Florida and California extensively 

 planted for fruit. (Lessons, Fig. 363.) 



* LEMONS, ETC. Glabrous. Flowers (and young shoots) usually tinged 

 with red; fruit mostly elongated and rough, with a nipple or projection 

 at the tip, the rind closely adherent to the flesh, which is usitally acid. 



C. Medico, Linn. CITRON. Leaves oblong or oval, acute, the petiole short, 

 winged or not ; fruit large, the rind very aromatic and covered with humps ; 

 the juice not abundant nor very acid. Named for the country Media. 



Var. Llmon, Linn. LEMON. Petiole narrowly winged ; fruit distinctly 

 elongated, the rind not lumpy, with an abundant and acid juice. 



Var. acris, Martyn. SOUR LIME. Flowers smaller ; fruit small, vari- 

 able in shape, the juice very acid. 



* # ORANGES. Glabrous. Flowers white ; fruit mostly roundish, without a 

 nipple, the skin much thinner and smoother, and separating from the 

 flesh, which is usually sireetish. 



C. Aurdntium, Linn. ORANGE. Tree, with ovate, large leaves, and 

 petiole either winged or naked ; fruit globose, usually 3'-4' in diameter, 

 golden-yellow, with a sweet edible flesh. China. 



Var. vulgaris, Wight & Arn. BITTER or SEVILLE ORANGE. Petiole 

 usually broadly winged ; fruit small, with a thin roughish rind and bitter 

 pulp. Run wild in Florida and other parts of the world ; a deteriorated 

 form of the Orange. 



C. nbbilis, Lour. MANDARIN, TANGERINE, KID-GLOVE ORANGE, OON- 

 SHIU. Tree small or bushy and much spreading ; leaves smaller and 

 narrower, the petioles not winged ; fruit small, flattened, the very thin 

 golden-russet rind parting readily from the loosely cohering, dryish, and 

 sweet carpels. Hardier than the Orange. Japan and China. 



