OP THE GENERA. xliu 



Order III.— TRYGYNIA.— 3 Pistils. 



* Mowers superior. 



Viburnum. Calyx with the limb small, 5-toothed and persistent. Co- 

 rolla rotate, subcampanulate or tubular, 5-lobed. Berry ovate or globose, 

 1-seeded, crowned by the teeth of the calyx. CaprifoliacecB, p. 144. 



Sambucus, Calyx with the limb small and 5-cleft, Corolla rotate or 

 urceolate, 5-lobed ; lobes obtuse. Berry roundish, pulpy, 1-celled, 3 — 5- 

 ^ seeded. CaprifoliacecE, p. 144. 



** Flowers inferior. 



Rhus. Calyx small, 5-parted, persistent. Petals 5, ovate, spreading. 

 Drupe nearly dry, with one bony seed. AnacardiacecB^ p. 71. 



Staphylea. Sepals 5, oblong, erect, colored. Petals 5, imbricate. 

 Fruit a membranaceous inflated 2 — 3-celled capsule. Staphyleacece^ p. 69. 



Order IV.— TETRAGYNIA.--i Pistils. 



Parnassia. Calyx deeply 5-cleft. Petals 5. Scales opposite to the 

 claws of the petals, terminating in glandular bristles at the apex. Capsule 

 1-celled, 4-valved. Seeds arillate. Droseracece, p. 41. 



Nemopanthes. Flowers by abortion dioecious or polygamous. Calyx 

 scarcely conspicuous. Petals 3 — 5, distinct, oblong, linear, deciduous. 

 Stigmas 3 — 5, sessile. Fruit subglobose ; nuculeS usually 4, smooth, bony. 

 Aquifoliacea, p. 228. 



Order V.— PENTAGYNIA,— 5 Pistils. 



Aralia, Calyx with the margin very short, 5-toothed or entire. Petals 

 5, spreading. Berry 5-celled. — Flowers in umbels. Araliacece, p. 140. 



Statice. Calyx funnel-form, 5-toothed. Petals 5, united at base. Fruit 

 a membranaceous utricle. Plumbaginacea, p. 293. 



LiNUM. Sepals 5, persistent. Petals 5, unguiculate. Filaments united 

 at base. Capsule subglobose, lO-valved, lO-celled. Seed solitary, ovate, 

 compressed. LinacecB, p. 53. 



Sibbaldia. Calyx 10-cleft, with the alternate segments narrower. Pe- 

 tals 5, minute. Styles proceeding laterally from the germ. Capsules 5, 

 indehiscent, in the bottom of the calyx, 1-seeded. Rosacea, p. 100. 



Drosera. Calyx deeply 5-cIeft. Petals 5. Capsule superior, globose 

 or ovoid^l — 3-celled, 3 — 5-valved, many-seeded. Droseracece, p. 41. 



(See Cerastium and Spergula in CLASS X.) 



Order VI.— HEXAGYNIA.— Many Pistils. 

 Zanthoriza. Calyx deciduous, 5-sepalled. Petals 5. Ovaries 5 — 15, 

 pointed with the curved styles. Follicles membranaceous, compressed, 

 usually 1-seeded. Banmiculacecs, p. 14. 



CLASS VI.— HEXANDRIA —6 Stamens, equal in height. 

 Order I.— MONOGYNIA.— 1 Pistil. 



* Perianth do^tble or in two rows, inferior. 



Tradescantia. Perianth in 2 rows ; the outer one 3-leaved, calycine; 

 inner one 3-leaved, petaloid. Filaments villous. Stigma obtuse. Capsule 

 2 — 3-celled, 3-valved, few-seeded. Commelynacece, p. 377. 



