QUASSIA FAMIXT. 83 



spring preceding the leaves, either the sepals or petals wanting ; pistils 3-5 

 with slender styles ; the little pods about the size and shape of pepper-corns 

 lemon-scentfid, raised from the receptacle on thickish stalks. 



Z. Carolini&JlUm, Southern P. Sandy coast S. ; a small tree the 

 bark armed with warty and the leafstalks with very slender prickles, smooth 

 with 7-9 ovate or lance-ovate leaflets, and whitish flowers in a terminal cj-me' 

 m early summer, later than the leaves, with the petals and sepals both present 

 3 or 2 short-styled pistils, and pods not stalked. ' 



4. PTELEA, HOP-TREE. (The ancient Greek name for the Elm, from 

 the resemblance in the winged fruit.) 



P. trifolidlta. Three-leaved H. Rocky woods from Penn. S. & W. • 

 a tall shrub or small tree, with ovate pointed leaflets, and a terminal cyme of 

 small greenish-white unpleasantly scented flowers, in early summer ; the orbic- 

 ular wmged fruit bitter, used as a substitute for hops. 



5. SEIMMIA. {Skimmi is the name in Japan, from which country the 

 common species was recently introduced into ornamental cultivation.) 



S. Jap6nica, a low quite hardy shrub, smooth, with oblong and entire 

 brightgreen evergreen leaves crowded on the end of the branches, which in 

 spring are terminated with close panicle or cluster of small and white sweet- 

 scented flowers, of no beauty, but followed by bright red berries which last over 

 winter. 



6. CITRUS, CITRON, ORANGE, &c. (Ancient name for C/hon.) Nir 

 lives of India, &c., cultivated with us only for ornament. Flowers white, 

 very sweet-scented, rather showy. The species or varieties are much con- 

 fused or mixed. 



C. vulgaris, BiTTEK Orange, with broadly winged petiole ; fruit with a 

 thin roughish rind and acrid bitter pulp. 



C. Aur^tium, Sweet Orange, with a very narrow wing or slin-bt 

 margin to the petiole ; fruit globose, with a smooth and thin separable r?nd 

 and a sweet pulp. 



Var. myrtifdlia. Myrtle-leaved or Chinese Orange, dwarf, with 

 small leaves (1'- 1^' long) and small fruit, depressed or sunken at the apex. 



C. Iiimdnium, Lemon, with a narrow wing or margin to the petiole, 

 oblong and acute toothed leaves, petals commonly purplish outside, and fruit 

 ovoid-oblong, with adherent rind and a very acid pulp. 



C. Iiim^tta, Lime, with wingless petiole, roundish or oval serrate leaves, 

 and globular fruit with a firm rind and sweetish pulp. 



C. M^dica, Citron (named from the country, Media), with wingless 

 petiole, oblong or oval acute leaves, petals purplish outside, and a large oblong 

 sweet-scented fruit with » very thick roughish adherent rind, and slightly acid 

 pulp. 



29. SIMARUBACEiE, QUASSIA FAMILY. 

 May be regarded as Rutaceae without transparent dots in the 

 leaves ; here represented by a single tree, the 



1. AILANTHUS, CHINESE SUMACH or TREE-OF-HEAVEN. 

 {Ai/anto, a native name.) Flowers polygamous, small, greenish, in teiTninal 

 branched panicles, with 5 short sepals and 5 petals, 10 stamens in the sterile 

 flowers and few or none in the fertile ; the latter with 2 to 5 ovaries ( their 

 styles lateral, united or soon separate), which in fruit become linear-oblong 

 thin and membranaceous veiny samaras or keys, like those of Ash on a 

 smaller scale, but 1 -seeded in the middle. 

 A. glandulbsus, the only species known here, from China, is a common 



shade-tree, tall, of rapid growth, with hard wood, very long pinnate leaves, and 



many obliquely lanceolate entire or sparingly sinuate leaflets ; flowers in earfy 



summer, the staminate very ill-scented. 



