OF THE GENERA. xlix 



■DiANTHUs. Calyx tubular, 5-toothed, with 2—5 opposite imbricate 

 scales at base. Petals 5, with long claws. Capsule 1-celled. Caryophyl- 

 lacecB, p. 44. 



ScLERANTHUs. Calyx 5-cleft, persistent ; tube urceolate. Stamens in-' 

 serted in the orifice of the tube. Petals none. Capsule very smooth, with- 

 out valves, covered by the indurated tube of the calyx. Scleranthacea,' 

 p. 121. 



Order III— TRIGYNIA.— 3 Pistils. 



SiLENE. Calyx tubular, 5-toothed, naked. Petals 5, unguiculate, mostly 

 crowned at the orifice ; Umb bifid. Capsule 3-celled at base, dehiscent at 

 the top into 6 teeth. Caryophyllacecc, p. 45. 



Stellaria. Calyx 5-sepalled. Petals 5, 2-cIeft or 2-lobed. Capsule 

 3 — 4-valved ; valves 2-parted, membranaceous. Seeds usually many. 

 Caryophyllacecs, p. 48. 



Arenaria. Calyx 5-sepalled. . Petals 5, entire. Capsule 1-celled, 3- 

 valved, many-seeded. CaryophyUacece, p. 49. 



McEHRiNGiA.' Sepals 4 — 5. Petals 4 — 5, somewhat periffynous. Cap- 

 sule splitting into twice as many (half) valves as there are stigmas. Seeds 

 few, smooth. CaryopkyllacecB, p. 50. 



Honckenya. Sepals 5, slightly united at base. Petals 6, perigynous, 

 with short claws, entire. Stamens inserted with the petals into a glandu- 

 liferous disk. Capsule 3 — 5-valved ; valves entire, 8— lO-seeded. Caryo- 

 phyUacecB, p. 60. 



Order IV.— PEINTAGYNIA.— 5 Pistils. 



Sedum. Sepals usually 5, more or less united at base, ovate, often turgid 

 and leafy. Petals 5, often spreading. Carpels 3^, many-seeded, with a 

 nectariferous scale at the base of eeich. Crassidacece, p. 123. 



OxALis. Sepals 5, free or united at base. Petals 5. Stamens often 

 monadelphous at base, unequal. Capsule 5-angled, oblong or cylindric, 

 5-cclled. Oxalidacea, p. 66. 



Agrostemma. Calyx tubular, 5-sided, coriaceous. Petals 5, unguicii- 

 late, not crowned ; limb entire. Capsule 1-celled, opening with 5. teeth. 

 CaryoplujllacecB, p. 47. 



* Cerastium. Calyx 5-sepalled. Petals 5, bifid or emarginate. Capsule 

 membranaceous, cylindric or oblong, opening at the summit by 10 teetli. 

 CaryophyUacecB, p. 50. 



Spergula. Calyx 5-parted. Petals 5, entire. Capsule ovate, 5-celled, 

 5-valved. ILlecebracea, p. 52. 



Penthorum. Sepals 5, united at base. Petals 5 or none. Carpels 5, 

 united at the base into a 5-beaked, 5-celled capsule ; cells opening trans- 

 versely on the inner side of the beaks. Crassulacece, p. 122. 



(^Silene and Stellaria in Order TRIGYNIA.) 



Order V.— DECAGYNIA.— 5— 12 Pistils. 



Phytolacca. Perianth 5-leaved, petaloid. Berry superior, globose-de- 

 pressed, made up of 5 — 12 closely united carpels. PhytolaccacecB, p. '300 



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