CLASS XI. ORDER I. 49 



Sapona'eu. Calyx inferior, 1-leafcd, tubular, 5-toothed, without scales ^ petals 

 5, with claws ; capsule oblong, 1-celled. (soap- wort.) 



DiAN"THns. Calyx inferior, cylindrical, 1-leafed, with 4 or 8 scales at the 

 base; petals 5, with claws; capsule cylindrical, 1-celled, dehiscent at the top. 

 (pink, sweet-william.) 



TiAREi.LA. Calyx 5-parted, persistent ; petals 5, inserted into the calyx, ungui- 

 culate, entire; capsule 1-celled, 2-valved. 



Scleran"thus. Calyx 5-clefr, with the stamens inserted upon it; corolla 0; 

 •capsule 1-celled, covered with the calyx. 



ORDER III. TRIGYNIA. 



Sile'ne. Calyx 1-leaved, tubular or conic, .5-toothed; petals 5, with claws, 

 generally crowned at the orifice ; capsule 3-celled, 6-toothed, many-seeded. 



Arena'ria. Calyx inferior, spreading, 5-leaved; petals 5, entire; capsule 1- 

 celled, many-seeded, (sandwort.) 



Cucu'bulus. Calyx 1-leaved, inflated ; 5-toothed; petals 5, unguiculate ; cap- 

 sule 3-celled. (bladder-campion.) 



STErxA'RiA. Calyx 5-sepalled; petals 5, deeply cleft; capsule 1-celled, opening 

 with 6 teeth, many-seeded, (siarvvort.) 



Horten"sia. Calyx 5-toothed, minute; corolla 5-petalled; the flowers com- 

 posing the cyme have a large, coloured, permanent, petal-like 5-leaved calyx, 

 and a minute, caducous, 4 or 5-petaUed corolla; stamens 8, 10, or 11. (change- 

 able hydrangea.) Ex. This plant is much altered by cultivation. 



ORDER V. PENTAGYNIA. 



SpEu"GaLA. Calyx 5-leaved ; petals 5, undivided ; capsule ovate, 5-celled, 5- 

 valved. ' 



CERAs"TroM. Calyx 5-leaved; petals 5, 2-cleftoremarginate; capsule 1-celled, 

 dehiscent at top, 10-toothed. (mouse-ear, chick-weed.) 



Agrostem"ma. Calyx 5-cleft, prismatic or tubular, coriaceous; petals 5, with 

 claws; border obtuse, entire; capsule 1-celled, many-seeded, opening with 5 

 teeth, (cockle.) 



Oxa'lis. Calyx permanent, 5-parted, or 5-leaved, inferior; petals 5, cohering 

 by the claws ; capsule 5-celled, 5-cornered, dehiscent at the corners; seeds 3 or 

 more in a cell, covered with an elastic aril; stamens with 5 shorter, outer ones, 

 adhering at their bases. 



Pentho'rom. Calyx 5 to 10-clefi ; petals 5 or 0; capsules 5-pointed, 5-celled; 

 cells divided transversely, many-seeded. (Virginian orpine.) 



Se'dom. Calyx inferior, 5-cleft ; 5 petals ; 5 nectariferous scales at the base of 

 the germ; capsules 5. (live-forever, orpine stone-crop.) 



Lych'''nis. Calyx 1-leaved, oblong, 5-toothed ; petals 5, with claws; the limb 

 somewhat 2-cleft; capsule 1 or 5-celled^ with a 5-toothed opening, (campion.) 

 Ex. 



ORDER X. DECAGYNIA. 



PnYTOLAc"cA. Calyx 0; corolla 5-petalled or 5-cleft, calyx-like, inferior, 

 berry 10-celled, 10-seeded. (poke-weed.) 



CLASS XI. ICOSANDRIA. 



ORDER I. MONOGYNIA. 



CAc"Tas. Calyx superior, many-cleft, imbricate ; petals numerous, in many 

 series, the inner ones larger; stigma many-cleft; berry 1-celled, many-.seeded, 

 umbilicate. (prickly-pear.) 



Cuphe'a. Calyx inflated, tubular, 6 to 12-toolhed, unequal, (wax-bush.) 



Deco'don. Calyx hemispheric, campanulate, 10-tooihed ; 5 teeth longer and 

 spreading; petals 5, undulate; cap.sule CQvered with the calyx, 3-celled, 3- 

 valved. 



Lyth"rum. Calyx cylindric, striate; 8 to 12-toothed; petals 4 to 6, equal. 

 Inserted on the calyx ; stamens as many, or twice as many as the petals, some- 

 times fewer ; capsule 2-celled, many-seeded, (milk-willow herb.) 



Prd'nus. Calyx inferior, 5-toothed; corolla 5-petaUed; drupe ovate or oblong, 

 fleshy, very smooth, covered with grayish dust; putamen compressed, acute at 

 both ends, subsulcate at the margin, elsewhere smooth, (plum.) 



Ceras'os. Drupe globose or umbilicate at base, fleshy, very smooth, destitute 

 of gray powder ; nucleus sub-globose, smooth, (cherry.) 



