CLASS XL ORDER L 355 



ARENA'RIA. Calyx inferior, spreading, 5-leaved ; petals 5, entire ; capsule 

 1-celled, many-seeded. 22. 82 (sand wort). S. 



Exotic, 



HORTEN"SIA. Flowers deformed ; florets solitary : calyx 5-toothed, mi- 

 nute ; corolla 5-petalled ; the gay flowers composing the cyme have a large, 

 coloured, permanent, petal-like, 5-leaved calyx, and a minute, caducous, 4 or 

 5-petalled corolla ; stamens 8, 10 or 11. 13. 84 (changeable hydrangea). 



ORDER. V. PENTAGYNIA. 



SPER"GULA. Calyx 5-leaved ; petals 5, undivided ; capsule ovate, 5-celled, 

 5-valved. 22.82. S. 



CERAS"TIUM. Calyx 5-leaved ; petals 5, 2-cleft, or emarginate ; capsule 

 1-celled, dehiscent at top, 10-toothed. 22.82 (mouse-ear, chick-weed). -S. 



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. 22. 82 (cockle). S. 



OXA"LIS. Calyx permanent, 5-parted or 5-leaved, inferior ; petals 5, co- 

 hering by the claws ; capsule 5-celled, 5-cornered, dehiscent at the corners ; 

 seeds 2 or more in a cell, covered with an elastic aril ; stamens with 5 shorter, 

 outer ones adhering at their bases. This genus and the Linum might be re- 

 moved to the class Monadelphia. 14. 73 (wood sorrel). S. 



PENTHO'RUM. Calyx 5 to 10-cleft; petals 5 or ; capsule 5-cuspidate, 5- 

 celled ; cells divided transversely, many-seeded. 13. 83 (virginian orpine). S. 



SE'DUM. Calyx inferior, 5-cleft ; 5 petals ; 5 nectariferous scales at the base 

 of the germ ; capsule 5. 13. 83 (live-forever, or orpine, stone-crop). 



Exotic. 



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. 22. 

 82 (campion). 



ORDER X. DECAGYNIA. 



PHYTOLAC"CA. Calyx ; corolla 5-petalled or 5-cleft, calyx-like, inferior; 

 berry 10-cell, 10-seeded. By some authors the calyx is called a corolla. 54. 

 29 (poke-weed). S. 



CLASS XI. 



ORDER I. MONOGYNIA. 



CAC"TUS. Calyx superior, many cleft, imbricate ; petals numerous, in many 

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

 umbilicate. 13. 85 (prickly-pear). S. 



PRU'NUS. Calyx-cle'ft, inferior, bell-form ; corolla 5-petalled : nut of the 

 drupe smooth with prominent seams at the sutures. 36. 92 (cherry, plum). S. 



CU'PHEA. Calyx tubular-ventricose, 6 to 12-toothed, unequal ; petals 6, 

 mostly unequal, inserted on the calyx : capsule 1-celle.d, dehiscent, longitu- 

 dinally with the calyx, follicle-like, 3-sided ; seeds lenticular. 54. 91 (wax- 

 bush). 5. 



Exotic. 



MYR"TUS. Calyx superior, 5-cleft ; petals 5 ; berry 2 or 3-celled, many- 

 seeded. 19. R9 (myrtle). 



AMYG"DALUS. Calyx 5-cleft inferior ; petals 5 ; drupe with a nut, perfora- 

 ted with pores ; flowers sessile. 36.92 (peach). 



ARM^NI'ACA. Flowers sessile ; calyx 5-cleft, inferior ; petals 5 ; drupe 

 fleshy, pubescent; nut with one margin acute and the other obtuse, furrowed 

 both sides. 36. 92 (apricot). 



PU'NICA. Calyx 5-cleft, superior ; petals 5 ; pome or berry many celled, 

 many-seeded ; receptacle parietal ; seed berried. 36. 92 (pomegranate). 

 Southern. 



PniLADEL"piius. Calyx 4-5-parted, superior, top-form ; corolla 4 or 5- 

 petalled ; style 4-cleft ; capsule 4-5-celled, many-seeded; seed arilled. 19.89 

 (false syringa, or mock orange). 



* Darlington proposes CALYCANDRIA as a substitute ; and to extend tho 

 class to all stamens bearing calyxes. 



