74 BANUNCULACEAE. 



many stamens as sepals or fewer. Gynoecium of 2-5 united carpels. 

 Ovary superior. Fruit a capsule subtended by the calyx. 



1. ARENABIA 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. lannginosa (Michx.) Bohrb. 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 3-4.5 mm. long. Hammocks. (Ber., Ant.) SANDWORT. 



FAMILY 11. OARYOPHYLLACEAE. PINK FAMILY. 



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 

 petals, the claws borne in the calyx-tube, the blades often appendaged at 

 the base. Androecium of usually 8 or 10 distinct stamens. Gynoecium of 

 2-5 united carpels. Ovary often stalked. Fruit a capsule opening by 

 apical valves. 



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

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

 broad. Capsule slightly longer than thick. 



1. V. Vaccarla (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 ohovate. rose-colored: 

 capsules 5-10 mm. long. Pinelands. Nat. of Eu. COW-HERB. 



Order BANALES. 



Herbs, shrubs, or trees. Leaves mostly without sti pairs, with emiro 

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

 perfect, monoecious, or dioecious. Calyx and corolla of distinct sepals 

 and petals. Androecium of usually more hypogynous stamens than there 

 are sepals. Gynoecium of 1 or several distinct or unitnl carpels. (>\:uy 

 superior. Fruit various. 



Land plants : leaf-blade* not peltate. 



Carpel* 1 or more, distinct, at least at maturity. 

 Sepal* 8-15: petals about at many: fruits dry: 



radoflperm even. Fnm. 1. RAM-NTI-LACKAE. 



Sepal* 5 : petals 6 : fruits pulpy : endoaperm chan- 



n- :<<!. Fnm. 2. AXNONAOEAE. 



Carpels more or less coherent or united Into a cone- 

 like structure, or Immersed In the pulpy recep- 

 tacle. 

 Sepal* yalvate. Pam. 1. ANXONACRAR. 



Sepals Imbricate. Fnm. 



Water plant* : emeraed or floating leave* peltate. Fam. 4. NTMFHAKACIA*. 



FAMILY 1. RANUNCULACEAE. CROWFOOT FAMILY. 



Herbs or woody vines. Leaves alternate (opposite in Clematideae) : 

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

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



