74 RANUNCULACEAE. 



many stamens as sepals or fewei*. Gynoeeium of 2-5 united carpels. 

 Ovary superior. Fruit a cajisule subtended by the calyx. 



1. ARENARIA L. Herbs. Leaf-blades flat, sometimes narrow. Flowers 

 axillary or cymose. Sepals 5, firm, often ribbed. Petals 5, entire or notched, 

 or wanting. Stamens typically 10. Stigmas 3, or rarely 2-5. Capsule erect. 



1. A. lanuginosa (Michx.) Eohrb. Plants diffuse, the branches 0.3-4 dm. 

 long: leaf-blades linear-spatulate to narrowly elliptic, 1-2 cm. long: sepals 

 lanceolate, 2.5-3.5 mm. long, acute: petals shorter than the sepals, or wanting: 

 capsules 3— i.5 mm. long. — Hammocks. — (Ber., Ant.) — Sandwort. 



Family 11. CARYOPHYLLACEAE. Pixk Familv. 



Herbs with stems usually swollen at the nodes. Leaves opposite : 

 blades often with connate bases. Flowers perfect, polygamous or dioe- 

 cious. Calyx of 4 or 5 partly united sepals. Corolla of 4 or 5 distinct 

 23etals, the claws borne in the cah-x-tube, the blades often appendaged at 

 the base. Androecium of usually S or 10 distinct stamens. Gynoeeium of 

 2-5 united carj^els. Ovan- often stalked. Fruit a capsule opening by 

 apical valves. 



1. VACCARIA Medic. Annual herbs. Leaf-blades relatively wide. 

 Flowers pedieelled. Calyx inflated : tube angled or winged. Petals 5 : blades 

 broad. Capsule slightly longer than thick. 



1. V. Vaccaria (L.) Britton. Stems 2-9 dm. tall, glaucous: blades of the 

 upper cauline leaves lanceolate to ovate-lanceolate, 3-11 cm. long: calyx 10-15 

 mm. long, ovoid at maturity; lobes acute: petal-blades obovate, rose-colored: 

 capsules 5-10 mm. long. — Pinelands. Nat. of Eu. — Cow-herb. 



Order RANALES. 



Herbs, shiiibs, or trees. Leaves mostly without stipules, mth entire 



or dissected blades, in aquatics often various on the same plant. Flowers 



perfect, monoecious, or dioecious. Calj-x and corolla of distinct sepals 



and petals. Androecium of usually more hypogynous stamens than there 



are sepals. Gynoeeium of 1 or several distinct or united carpels. Ovaiy 



superior. Fruit various. 



Land plants : leaf-blades not peltate. 



Carpels 1 or more, distinct, at least at maturity. 



Sepals 3-15: petals about as many: fruits dry: 



endosperm even. Fam. 1. RAXUNCrLACEAE. 



Sepals 5 : petals 6 : fruits pulpy : endosperm chan- 

 neled. Fam. 2. Axxonaceae. 

 Carpels more or less coherent or united into a cone- 

 like structure, or immersed in the pulpy recep- 

 tacle. 

 Sepals valvate. Fam. 2. Axxox.\oeae. 

 Sepals imbricate. Fam. 3. Magnoliaceae. 

 Water plants : emersed or floating leaves peltate. Fam. 4. Nymphaeaceae. 



Family 1. RANUNCULACEAE. Crowfoot Faiiily. 



Herbs or woody vines. Leaves altei-nate (opposite in Clematideae) : 

 blades simple or compound. Calyx of 3-5 distinct, imbricate (valvate in 

 Clematideae) sepals. Corolla of about as many petals as there are sepals. 



