CLASS X. OliDElL L 



47 



ally In two series of 6 each, with 3 of the 

 hmer scries bairen, often dioecious. The 

 calyx may be taken for a corolla, (sassafras, 

 spice-bush.) 



ORDER II, DIGYNIA. 



Erigo'num. Perianth bell-form, 5-clefl; 

 Beeil triangular, covered by the calyx ; flow- 

 ers iuvolucred. S. 



Plee'a. Calyx none; corolla G-parted, 

 spreading ; segments linear, acute ; capsule 

 roundish, 3-angled, 3-celled, partitions obso- 

 lete ; seeds numerous, minute, sub-tcretc 

 and caudate, attached to the margin of the 

 valves. 



ORDER III. TRIGYNIA. 



Rhe'itm. Perianth 6-cleft, penuaiient; 

 seed I to 3-sided, (rhubarb.) 



CLASS X. DECANDRIA. 



ORDER I. MONOGYNIA, 



A. Floiccts jyolypetalous, irregular {mostly 

 papilionaceous) 



Cas"sia. Calyx 5-leaved ; corolla 5-pe- 

 tallcd ; anthers 3, lower ones beaked, and on 

 longer incurved filaments ; legume membra- 

 naceous, (cassia.) 



Bapti'sia. Calyx 4 or 5-cleft, half-way 

 (sometimes 4-toothed), somewhat 2-lipped ; 

 corolla papilionaceous ; wings of the length 

 of the retlexed banner ; stamens caducous ; 

 legume inflated, smooth, many-seeded, (wild 

 indigo.) 



Cer"cis, Calyx 5-toothed, gibbous be- 

 low ; corolla papilionaceous, wings longer 

 than the banner ; keel 2-petalled ; legume 

 compressed ; .seed-bearing suture margined ; 

 seeds obovate. (Judas-tree.) 



Sopho'ra. Calyx 5-toothed; pod many- 

 seeded, not wiuijed. S. 



Ther"mia. Calyx oblong, 2-lipped, con- 

 vex behind ; banner reflexed ; keel obtuse ; 

 pod linear, many-seeded, (false lupine.) S. 



Virgil'"ia. Calyx 5-cleft; petals equal; 

 stigma beardless ; pod compressed, oblong, 

 many-seeded. S. 



Poma'ria. Calj^x turbinate, 5-parted, ca- 

 ducous; petalsS, with .short claws; filaments 

 hirsute below ; legume 1-celled, 2-.secded. *S'. 



Rhodo'ra. Calyx 5-toothcd ; corolla 3- 

 petalled, or 2-petalled, with the upper one 

 deeply parted ; stamens declined ; capsule 

 5-celled, 5-valved, opening at the top. 



B. Flmcers polypetalous, regular. 



Pyro'la. Calyx 5-parted ; petals 5; .styles 

 longer than the stamens ; anthers -with 2 

 pores at the base before, and at the top after 

 the opening of the flower ; capsule 5-celled, 

 dehiscent at the angles near the base, (shin- 

 leaf.) 



Chimaph"ti.a. Calj-x 5-parted ; petals 5 ; 

 anthers beaked, with 2 pores at the base be- 

 fore, and at the top after the opening of the 

 flower ; style immersed ; stigma thick, or- 

 biculate ; capsule 5-celle<l, dehi.sccnt at the 

 angles near the summit, (prince's pine, pip- 

 gissiwa.) 



Leiophyt."i.um. Calyx 5-parted ; corolla 

 flat, 5-parted or 5 petallod ; stamens longer 



than the corolla, with lateral anthers opening 

 longitudinally on their insides ; capsule 5- 

 cclled, dehiscent at the top, 5-valved ; vaivea 

 ovate with margins inflexed, remote, straight, 

 columella sub-ovate, terete, rugose ; seeds 

 small, not winged ; leaves always glabrous, 

 (sleek-leaf) 



Cle'thra. Calyx 5-parted, permanent; 

 corolla 5-petalled ; style pemianent ; stigma 

 short, 3-cleft ; capsule 3-celled, 3-valved, en- 

 clo.sed by the calyx. Spiked, (.sweet pep- 

 per-bu.sh.) 



Ru'ta. Calyx 5-parted ; petals concave , 

 receptacle surrc^unded by 10 nectariferous 

 dots ; capsule lobed ; petals sometimes 4, and 

 stamens 8. (rue.) Ex. 



Le'dum. Calyx minute, 5-toothed ; corol- 

 la 5-petalled, spreading ; stamens exserted ; 

 anthers opening by 2 terminal pores ; cap- 

 sule sub ovate, 5-celled, 5-valved, opening at 

 the base. (Labrador tea.) 



Myloca'rium. Calyx 5-toothed ; petals 

 5 ; stigma sessile ; capsule superior, winged 

 3-celled, 1 -seeded, seed subulate, (buck- 

 wheat-tree.) i5. 



Me'lia. Calyx minute. 5-parted ; petals 

 5; nectaiy 10-toothed, cylindric ; drupe 5- 

 celled, 5-seeded. (pride of China.) S. 



Jussi'^u, Calyx 4 or 5-parted, superior, 

 persistent ; petals 4 or 5, ovate ; capsule 

 many-seeded, .seeds minute. S. 



Swiete'nia. Calyx 5-cleft ; petals 5; cap- 

 sule 5-celled, opening at the base, woody ; 

 seeds winged, (mahogany-tree.) S. 



Trib"ulus, Calyx 5-pavted ; petals 5, 

 spreading; .styles none; .stigma partly 5-clefl;; 

 capsules generally 5, gibbous, sub-spinosci 

 2 or 3-seeded. (caltrops.) jS. 



Proso'pis. Calyx hemispherical, 4-tooth- 

 ed , petals 5, lance-linear, recurved at the 

 apex ; filaments capill-ary, adnate at the 

 base ; stigma simple ; legume long, many- 

 seeded. /S'. 



Limnan"thes. Sepals 5, united at the 

 ba.'^e ; petals 5, cuneifomi, retuse, longer than 

 the sepals ; ovaries 5 ; styles united into one, 

 nearly to the top, S. 



Limo'nia. Calyx 4 or 5-cleft, urceolate, 

 marescent; petals 4 or 5 ; stamens 8 to 10, 

 filaments distinct, subulate ; anthers cordate, 

 oblong ; receptacle elevated, forming a short 

 stipe to the ovary ; style 1 ; stigma some- 

 what lobed ; fruit orange-form, 4 or 5-celled, 

 or, by abortive growth, fewer ; seeds solita- 

 ry in each cell. 



Dion.4:'a. Calyx 5-parted or 5-leaved 

 petals 5 ; stigma fringed ; capsule roundish, 

 gibbous, 1-celled, many-seeded ; petals some 

 times 6. (Venu.s' fly-trap.) S. 



C, Flowers viouopcfalous. 



Arbu'tus. Calyx inferior, 5-parted, mi- 

 nute ; corolla ovate, pellucid at the base ; 

 border small. 5-cleft, revolute : filaments 

 haiiy ; beny 5-celled. (bear-berry.) 



Epig.ic'a. Calyx double, outer 3-leaved, 

 inner 5-partcd (or calyx 5-parted. with 3 

 bracts) ; corolla salvcr-forni ; border 5 part- 

 ed, spreading ; tube villo.se within ; capsule 

 5-celled, many-seed' d ; receptacle 5-parted 

 (trailing arbutus.) 



