50 CLASS XL ORDER IIL 



Mentze'lu. Calyx 5-cleft, superior, caducous ; petals 5; capsule l-ce.led, 3- 

 va'ived, cylindric, 3 to 6-seeded; leaves oblong, arranged longitudinally. (S. 



Decuma'ru. Calyx superior, 8 to 10-cleft; petals 8 to 10; capsule 7 to 9-cell- 

 ed, many-seeded, seeds subulate, minute. S. 



Chrysobala'nos. Calyx inferior, 5-cleft; petals 5; style lateral; drupe prune- 

 lorm; nut 5-grooved, 5-valved, 1-seeded. S. 



Tiga'rea. Calyx inferior, 5-cleft ; petals 5 ; capsule oblong, acuminate pubes- 

 cent, 1-seeded. S. 



Myr"tus. Calyx superior, 5-cleft ; petals 5 ; berry 2 or 3-celled, many-seed 

 ed. (myrtle.) Ex. 



Amyg"dalus. Calyx 5-cleft, inferior; petals 5; drupe has a perforated puta- 

 men; flowers sessile, (peach.) Ex. 



Armenia'ca. Flowers sessile ; calyx 5-cleft, inferior ; petals 5; drupe fleshy, 

 pubescent; putamen with one margin acute and the other obtuse, furrowed both 

 sides, (apricot.) Ex. 



Pu'NiCA. Calyx 5-cleft, superior; petals 5 ; pome or berry many-celled, many- 

 seeded; receptacle parietal ; seed berried, (pomegranate.) Ex. 



Philadel"phus. Calyx 4-5-parted, superior, top-form ; corolla 4 or 5-petalled ; 

 .style 4-clefl ; capsule 4-5-celled, many-seeded; seeds arilied. (false syringa, or 

 mock orange.) Ex. 



ORDER II. DIGYNIA, TO ORDER V. HENTAGYNIA ; OR DI-PENTAGYNIA. 



Agrimo'nia. Calyx inferior, 5-cleft or 5-toothed, invested with an outer lobed 

 one ; petals 5; stamens 12; seeds 2, in the bottom of the calyx, (agrimony.) 



Crat.e'gu.s. Calyx superior, 5-cleft ; petals 5 ; styles 1 to 5 ; berry mealy ; 

 seeds 2 to 5, bony, (thorn-bush.) 



Aro'nia. Calyx superior, 5-loothed ; petals 5 ; fruit pomaceous ; berry 5 or 

 lO-celled ; cells 1 or 2-seeded ; seeds cartilaginous, (shad-flower, choke-berry.) 



Py'rus. Calyx 5-cleft, superior; corolla 5-petalled; pome 5-celled, many- 

 seeded; seed compressed, ovate, (pear, apple, quince.) 



Spire'a. Calyx 5-cleft, inferior, spreading; corolla 5-petalied; petals equal, 

 roundish ; stamens numerous, exsert ; capsules 3 to 12, 2-valved within, each 1 

 to 3-seeded. (steeple-bush, hard-hack.) 



Sesu'vium. Calyx 5-parted, coloured ; petals ; stigmas 3 to 5 ; capsule supe- 

 rior, 3 to 5-celled, opening circularly, many-seeded. 



Gille'nia. Calyx tubular, bell-form, contracted at the mouth, 5-cleft ; petals 

 5, linear lanceolate, somewhat unequal, coarctate at the claws; stamens 10 to 

 15 included ; styles 5, contiguous ; stigmas capitate ; capsule 5-celled ; cells 2- 

 seeded. (Indian physic.) 



Sor"bus. Calyx 5-cleft ; petals 5; styles 2 or 3; berry inferior, farinaceous, 

 with 3 cartilaginous seeds, (mountain ash.) 



Fothergil"la. Calyx inferior, truncate, obsoletely crenate ; corolla 0; germ 

 2-cleft; styles 2; capsule 2-lobed, 2-celled ; seeds brown, solitary. 



Mes"pilus. Calyx superior, 5-cleft, divisions serrate ; corolla 5-petalled ; 

 styles 2 to 5 ; drupe 2 to 5-seeded ; seeds bony. Ex. 



Mesembryan"themum. Calyx superior, 5-cleft ; petals numerous, linear, co- 

 hering at the base; capsule fleshy, many-seeded, turbinate, (ice-plant.) Ex. 



ORDER III. POLYGYNIA, 



Ro"sA. Calyx urn-form, inferior, 5-cleft, fleshy ; contracted towards the top ; 

 petals 5 ; seeds numerous, bristly, fixed to the sides of the calyx within. A 

 genus remarkable for the multiplication of its petals by rich culture, (rose.) 



Ru'bus. Calyx 5-cleft, inferior; corolla 5-petalled; pistils num.erous; berry 

 composed of many juicy 1-seeded acines on a dry receptacle, (raspberry, black- 

 berry.) 



Dalibar"da. Calyx 5 or 8-cleft, iifferior ; corolla 5-petalled; styles long, ca- 

 ducous, 5 to 8; berry composed of dry grains, (dry strawberry.) 



Ge'um. Calyx inferior, 10-cleft, 5 alternate divisions smaller ; corolla 5-petal- 

 led ; seeds with a bent awn ; receptacle columnar, villous, (avens, or herb- 

 bennet.) 



Potentil"la. Calyx flat, inferior, 10-cleft; 5 alternate divisions smaller; 

 corolla 5-petalled ; petals roundish or obovate ; seeds awnless, roundish, rugose, 

 fixed to a dry, small receptacle, (five-finger, cinquefoil.) 



Fraga'ria. Calyx inferior, 10-cleft; 5 alternate divisions smaller; corolla 5* 



