OxDER 63—THE UMBELWORTS. 209 
P. grandifio’rus. Large-flowered Syringa. A very showy shrub, 6f. high. Leaves 
ovate, acuminate, 3-veined. Stigmas 4, styles united into 1. Flowers large, in 
umbels of 2-7, white nearly invdorous. Cultivated, but wild at the South. June. 
P.corona’rius, Mock Orange. Stems 5-8f. high. Leaves oval and ovate, short- 
pointed, feather-veined. Styles and stigmas 4, distinct. Flowers numerous, 
white, handsome) very fragrant. Cultivated. June. 
4, HYDRAN’GEA. Hydrangea. 
Flowers in cymes, the marginal ones generally barren, with the sepals 
much enlarged (that is, the cymes are radiant). The fertile flowers are 
sinall, calyx about 4-toothed, petals 4, stamens 8 or 10; capsule 2-beaked, 
many-seeded. 
1 H.arbores’cens, Big Wild H. Leaves ovate, obtuse or cordate at base, nearly 
smooth. Cymes flat. Shrub 4 to 6 feet high. M.W. Cultivated. 
2 H. quercifo’lia. Oak-leaved H. Leaves deeply sivnate-lobed. Cymes in the form 
ofa panicle. South. Cultivated. (See Fig. 482.) 
8 H. radia’ta. Silver-kaved H. Leaves ovate, clothed with u silvery-white down 
beneath. Cymes flat. Shrub 6-8f. high. S. t 
4 H.horten’sis. Chungeable H. Leaves elliptical, narrowed at each end, smooth, 
Cymes mostly all barren, changing from green to white, pink, blue, &e. 
Orper LXIII. UMBELLIFERA. The Umbelworts. 
Herbs with hollow, farrowed stems, simple or compound leaves ; 
no stipules, but with a broad sheathing base to the petioles ; 
the small lowers in umbels, and the calyx wholly adherent to the ovary ; 
the petals and stamens 5, standing on the top of the ovary ; 
the styles 2, and the fruit dry, its 2 carpels seed-like and separating, 
marked outside by ribs and furrows running lengthwise. 
Analysis of the Genera. 
* Plants growing wild, some of them cultivated for the eatable root....2 
® Plants never wild, but cultivated for their fruit, &e..... q 
2 Flowers white, rarely rose-colored or cream-colored....3 
2 Flowers yellow, or (in one instance) dark purple... .4 
8 Umbels simple, leaves simple. Little creeping wet plants....a 
8 Umbels regularly compound, the flowers not sessile... .¢ 
8 Umbels irregular, flowers in crowded heads, sessile....b 
4 Fruit decidedly flattened on the back....p 
4 Fruit flattened on the sides or not at all....0 
