XIII 
§ Stas 1 —10 (comp. Acerinese). 
Q Stas free (comp. BalsamineceJ. 
f Cor. reg. (in Dictamnus and some Crucifer® rather irreg.). 
0 Ls opp. or wkorled. 
12. Silenacese. Cal. gamosepalous. Pets 5, more or less 
distinctly unguiculate. Stas twice as many as pets, rarely 
only 5. Styles 2—5. Ovary 1- (or at the base 3—5-)celled. Caps, 
(in Cucubalus berry-like).—Pets and stas often inserted on a 
more or less elongated carpophore. Herbs with opp., simple, 
exstip. Is. Inflorescence dichotomous. Chiefly Cl. 10. 
13. Alsinacese. Similar, but cal. polysep. and pets not ungui- 
culate (gen. white). Ovary 1-celled.—Stas sometimes perig. 
Some (Spergula, Spergularia) with membranous stipules (comp. 
Paronychiacere), rarely apetalous. 
14. Elatinaceae. Seps 2—4. Pets 2—4. Stas as many or 
twice as many as pets. Styles 2—5. Ovary 3—5-celled. Cap¬ 
sule.—Marsh or water pis with simple, stip. ls. 
19. Acerinese. Seps and pets gen. 4—5. Stas gen. 8 
(5—12), inserted on a fleshy swelling (hypog. disk.). Ovary 
2-celled. Fr. in 2, gen. 1-seeded, samane. Ligneous pis with 
palmati-lobed or pinnate, exstip. ls. 
0 Ls altern., rad. or scale-like. 
a) Stas 8 — 10, twice as many as pets.—Capsule. 
24. Rutacese. Placentae axile. Ovaries free, or more or 
less united.—Ls pinnate or multipinnate, with glandular spots. 
63. Pyrolaceae. Placentae parietal. Ovary 4—5-celled.— 
Ls undiv., leathery, green. Cotyledons 0. 
64. Monotropacese. Similar but Is scale-like (comp. Ericaceae). 
b) Stas 4 or 6 (in some Crucifer® only 2). 
2. Berberideae. Seps and pets 4—6. Stas opp. the pets. 
Berry or caps. Anthers opening by valves. 
6. Cruciferae. Seps and pets 4. Stas 6, tetradynamous, 
i. e. 4 longer and 2 shorter. Siliqua (or silicule), more rarely nutlet, 
(1-celled, indehisc.), or an articulate siliqua (separating into 
1-seeded joints). Cl. 15. 
C. Stas 5 or 3. 
10. Droseraceae. Stas 5. altern. with the 5 pets. Styles 
or stigs 3—5. Capsule.—Marsh pis with entire ls. 
20. Ampelideae. Stas. 5, opp. the 5 pets. Style 1. Berry. 
—Twining shrubs with lobed or palmate ls. 
94. EmpetraceaB. Stas 3. Seps and pets. 3 (or, more cor¬ 
rectly, divisions of the perianth in 2 series, the inner like a 
cor.) Drupe berry-like.—Small evergreen shrubs with needle¬ 
like ls. 
t Cor. irreg.—Style 1. 
