Xlvi LINN^AN ARRANGEMENT 



Melantiiium. Polygamous. Periairo petaloid, rotate, deeply 6-parted ; 

 segments unguiculate, with two glands at the base. Stamens on the clawa 

 of the perianth. Capsule ovoid-conic, 3-celled, many-seeded. MeLantha- 



cea., p. 3G5. 



'^ « 



Vkratrum. Polygamous. Perianth calyx-like, deeply 6-parted, spread- 

 mg, persistent ; the segments sessile and without glands. Stamens on the 

 receptacle. Capsule ovoid, membranaceous, 3-lobed ; the carpels distinct 

 at the summit, many-seeded. Melanthacea^ p. 366. 



Helonias. Sometimes dioecious. Perianth corolla-Uke, 6-parted, spread- 

 ing ; segments sessile and without glands. Stamens at length exceeding 

 the perianth. Capsule 3-celled, 3-horned. Melanthacece, p. 366. 



Xerophyllum. Perianth subrotate, deeply 6-parted. Stamens contigu- 

 ous at base. Stigmas 3, revolute, partly united below. Capsule subglobose, 

 3-celled ; cells 2-seeded, opening at the summit. Melanthacece, p. 366. 



ToFiELDiA. Perianth 6-parted, with a small 3-parted involucre. Stamens 

 smooth. Capsule 3-^6-celled ; cells united at base, many-seeded. Melan- 

 thacece, p. 366. 



ScHEUCHZERiA, Perianth of 6 somewhat petaloid persistent leaves ; the 

 3 inner ones narrower. Anthers on slender filaments. Capsules 3, inflated, 

 united at base, 1 — 2-seeded. JiincaginacecE, p. 380. 



Triglochin, Perianth 6-leaved, somewhat colored, deciduous; leaves 

 concave. Anthers subsessile. Capsules 3 — 6, united by a longitudinal re- 

 ceptacle from which they usually separate at the base, 1-seeded. Jtmcagi- 

 nacecB, p. 379. 



Medeola. Perianth petaloid, 6-parted, revolute. Stamens inserted at 

 the base of the perianth. Styles filiform, elongated, divaricate. Berry 

 3-celled. Trilliacecs, p. 359, 



Trillium. Perianth deeply 6-parted ; 3 outer segments (sepals) spread- 

 ing ; 3 inner petaloid, (petals.) Stamens inserted at the base of the seg- 

 ments, nearly equal. Styles stigmatose on the inside. Berry ovoid, 3- 

 celled. TrilliacccB, p. 360. 



Saururus. Flowers in a solitary spike. Scales 1-flowered. Corolla 

 none. Fruit 3- or 4-celled ; the carpels easily separating at maturity, 1- 

 (rarely^) seeded, not opening. SaioruracecB, p. 318. 



Order IV.— POLYGYNIA.— Miny Pistils. 



Alisma. Perianth 6-lea;[ed ; 3 outer leaves persistent, calycine ; 3 inner 

 colored, petaloid, deciduous. Carpels numerous, distinct, 1-seeded, crowned 

 with the persistent style. Alismacece, p. 379. 



CLASS VII.— HEPTANDRIA.— 7 Stamens. 

 Order L— MONOGYNIA.— 1 Pistil. 



Trientalis, Calyx deeply 6 — 8-parted. Corolla deeply 6— 8-parted, 

 rotate. Stamens 6 — 8 (mostly 7.) Capsule globose, somewhat fleshy, 

 (berry,) opening at the sutures, and then 5-valved, Primulacece, p. 290. 



iEscuLus. Calyx campanulate, 5-toothed, ■ Petals 4 — 5, more or less 

 unequal. Filaments recurved backward. Fruit coriaceous. Hippocastor- 

 nacece, p. 62. 



{Ulmus in CLASS V., Order II.) 



