92 FAM. 113. 



in a large globose umbel on a long peduncle, with an involucre 

 of 10 bracts; involucels of 2-3 bractlets caducous; sepals 5 united 

 below; petals 5, partly overlapping but not coherent; stamens 

 15, of which 5 are staminodia, monadelphous; anthers 2-celled; 

 ovary superior, 5-celled, each cell with 2 ovules; one style with 

 5 stigmas. Cultivated. Winter. - Dombeya Wallichii 



D. spectabilis, with straw-colored and pink flowers, and others with 

 white flowers. 



113. Hypericaceae, St. John's Wort Family. 



Herbs and shrubs with exstipulate, opposite, entire, 

 dotted leaves, and hypogynous flowers in cymes; sepals 

 and petals 4-5; stamens mostly numerous and in 3-5 sets; 

 styles 2-5, often united; capsules 1-celled with parietal 

 placentae, or 2-7 celled with axial placentae; seeds very 

 numerous , small . 



1. Sepals 4, and mostly petals 4, ---------2 



1. Sepals and petals 5, -------- __3 



2. Sepals in pairs, unequal in size or shape, or both; capsule enclosed 



by outer pair; — shrubs with 2-edged branches; flowers yellow, 



terminal; ovary 1-celled, styles 2-4, distinct or united. 



Ascyrum, St. Peter's-wort 

 A. stans. Leaves clasping; outer sepals longer than the inner, and broader than 



the leaves; styles 3-4. Moist sandy soil. Summer and Fall. 

 A. tetrapetalum (amplexicaule). Leaves clasping; outer sepals as long as the 



inner, and narrower than the leaves; styles 3-4. Moist sandy soil. Spring 



to Fall. 

 A. hypericoides, St. Andrew's Cross. Leaves crowded, linear; outer pair of 



sepals obovate to oblong, inner pair petaloid; styles 2. Sandy soil. Sum- 

 mer and Fall. 

 A. pumilum. Leaves sessile; outer pair of sepals ovate or suborbicular, inner 



pair nearly obsolete; styles 2 united. Dry sandy soil. Spring. 



2. Sepals in pairs, slightly unequal in size and shape; capsule longer 



than the sepals; — shrubby; flowers yellow, terminal, solitary or 

 clustered; petals unequal; ovary 1-celled; styles 3, Crookea 



C. microsepala (Ascyrum microsepalum). Branches decumbent or ascend- 

 ing; leaves sessile. Sandy soil. Spring. 



3. Petals pink, sometimes tinged with green or purple; — glabrous 



marsh-herbs; leaves thickish with veins curving along the mar- 

 gins; flowers few, in cymes; stamens mostly 9, in sets of 3, with 

 orange glands between the sets; ovary 3-celled; styles 3, dis- 

 tinct; capsule longer than the sepals, 



Triadenum (Elodea), Marsh St. John's-wort 



T. Virginicum. Leaves sessile, sometimes clasping, broadest below the middle. 

 Summer. 



T. petiolatum. Leaves petioled, narrow at the base. Summer. 



3. Petals yellow, ------------4 



4. Leaves reduced to scales; — somewhat fleshy herbs with the flowers 



scattered along the branches; stamens 5-20; ovary 1-celled; 



styles 3, distinct. In sandy soil, ------ Sarothra 



