SYNOPSIS OF THE NATURAL SYSTEM. 
Sec. I. Classes and Subclasses. 
~ 1 Flowering plants (PHzNocaAmia). 2 
1 Flowerless plants (CryvproGamia). 5 
2 Lvs. net-veined (§ 229, 1). Fis. never wholly trimerous (ExoGEns). 3 
2 Lvs. parallel- (rarely net-) veined. Fs. trimerous apie at: 4 
3 Stigmas present. Sds. enclosed in a pericarp.6 ANGIOSPERMS. I 
3 Stig. none. Sds. quite naked. (ContrER£. CX X XI) GYMNOSPERMS. II 
4 Sepals and petals verticillateor 0. Glumes0. 143 AGLUMACE. Ill 
4 Sep. and pet.none. Glumesaltern. Fr. l-s’ded. 163 GLUMACE. IV 
5 Stems and leaves distinguishable. 164 - - - ACROGENS. V. 
5 Stems and leaves undistinguishable. 168 - - - THALLOGENS. VI 
6 Petals (or petaloid sepals) distinct. 7 - - - - - Polypetale. I 
6 Petals united (at least at their bases). 76 - - - Monopetale. If 
6 Petals 0. Sepals more or less unitedor none. 116 - Apetale. IIE 
Sec. II. Orders of the Polypetalous Exogens. 
7 Herbs (164), annual, biennial or perennial, rarely suffruticose at base. - - §& 
7 Shrubs and trees (164). - - - - - - - - - = = = > + - - - ‘54 
8 Leaves alternate or all radical. - - - - - - - 2-2 ---. 7 29 
8 Leaves cauline, opposite, at least the lower ones. - - = © <5 = -(5 = 3 
9 Stipules (249) present. - - - - - - - - - - = = = + = - - 34 
9Stipulesnones - - - - - -- ----- - t= te ee =e 10 
10 Polyandrous,—stamens (20—200) indefinite. - - - - - - - - - - - ll 
10 Oligandrous,—stamens (few) definite. - - - - - - - - - - --- 17 
11 Stamens (hypogynous) inserted on the receptacle (74, 2d). - - - - - 12 
11 Stamens eer ga inserted on the calyx orcorolla. - - - - - - - 16 
12 Ovaries simple; fruit acheniate, folliculate, &c.,nevercapsular. - - - - - 13 
12 Ovaries united intoa compound capsule. - - - - - - - - - - - - Bb 
13 Leaves never peltate. Seeds albuminous. - - - - Ranunevutacez. | 
13 Leaves centrally or subcentrally peltate. Aquatic. - - ---- - 14 
14 Sepalsand petals definite (2—4). Seeds albuminous. - CasompBacez. VII 
14 Sepalsand petals indefinite, numerous. Albumen 0. - 
15 Sepals and petals indefinite, numerous. - - = 
15 Sepals and petals 5. Lvs. pitcher- or trumpet-form. 
15 Sepals 2. Juice usually colored. - - - - - - 
- Nympuzacez. IX 
SARRACENIACER. X 
PAPAVERACEE. XI 
16 Sepals and petals 5—10. - - moe ew woe be os mee =p ee SI 
16 Sepals and petals indefinite and confounded. - - - - - - Cactracezx. LXI 
17 Flowers very irregular. - - - - - - - - - - - = = = - = - 18 
17 Flowers regular or nearly so. - - - - - - - - = = = = = = = 20 
18 Filaments 6 or 8, united below into one or twosets. - - - - - - - - 19 
18 Filaments 5, cohering only attop. - - - - - - Batsaminacez. XXVIII 
18 Filaments 8, distinct. Leaves peltate. - - - - - - Trop#oLtaceEz. XXIX 
18 Filaments 8, distinct. Lvs. biternate. Vine with tendrils. Sarinpacez. XLIV 
19°Leaves much dissected and divided. - - - - - - - Fumariacez. XII 
19 Leaves simple, entire. - - - - - - - - - - Potyeatacez. XVI 
20 Ovaries superior (97), free from the calyxornearlyso.- - - - - - - - - 2l 
20 Ovaries inferior, or wholly adherent to the calyx (97). - - - - - - - - 32 
21 Sepals 2. Fleshy herbs. - - - - - - - - Portutacacez. XXIV 
21 Sepals 3 or more. -+ = - * == = 35 = = set eie &) 2 a a = 22 
22 Sta. (hypogynous) inserted on thereceptacleortorus. - - - - - - = - 23 
22 Stamens (perigynous) inserted on the calyx. - - - - - - - - - - - 31 
23 Sepals, petalsand stamens symmetrical (61,c). - - - - - - - - - 24 
23 Sepals, petals and stamens unsymmetrical. Fruita pod. ~- - - - - 29 
24 Carpels solitary, fruit simple, one-celled. - - - - - - Berseripacex. VI 
24 Carpels 3—5, more or lessunited. - - - - a 3) See ay Sy eae 
25 Leaves simple. - - - - - - - “<2 Uhr ate) S> ae 
oe aia omtlio, <= Ae ea ee 
25 Leavescompound. - - - - - - - 
26 Ovary and capsule one-celled. Aquatic. - DroserAcEz. XVIII 
26 Ovary and capsule5—10-celled. - - - - - - - ULinacez. XXVI 
27 Plants aquatic. Fr. 2—5 fleshy achenia. Juiceacid. Limnantuacez. XXX 
27 Plants not aquatic. - - - 5 sf Seve eee & ye eee” 
28 Leaves palmately 3*foliate. Juice acrid. - - - - - Oxatmnacez. XXXI 
28 Leaves pinnate, with pellucid resinous dots. - - Rvuracez. XXXIV 
29 Flowers cruciform (105, 1). Pods 2-carpeled, 2-celled. - 
29. Flowers not cruciform. -- - - BA ae ; 
12 
Crucirerz. XIII 
ae av 3O 
- Netumsiacez. VIII ° 
