16 CHENOPODIACEAE. 



Leaf -blades longer than wide, narrowed at the base : fruits about 1 cm. thick. 



1. C. laurifolta. 

 Leaf -blades wider than long, cordate at the base : fruits 1.5-2 cm. 



thick. 2. C. uvifera. 



1. 0. laurifolia Jacq. Shrub or tree, leaf-blades ovate to obovate, 5-10 cm. 

 long, narrowed or rounded at the base: panicles less than 1 dm. long during 

 anthesis, the lower flower-clusters usually with 3 or 4 pedicels: sepals 2.5-3.5 

 mm. long: hypanthium-margin even between the filaments: fruit globose-ovoid. 

 PIGEON-PLUM. 



Coast of trop. and subtrop. Fla., or near it, especially on the E. Keys and F. 

 Keys. (W. I.) 



2. C. uvifera (L.) Jacq. Shrub or small tree: leaf-blades suborbicular, 4-20 

 cm. wide, cordate at the base: panicles over 1 dm. long during anthesis, dense: 

 sepals 2-3 mm. long: fruits subglobose, borne in grape-like clusters. SEA- 

 GRAPE. 



Hammocks, coastal regions of trop. and subtrop. pen. Fla. and the F. Keys. (W. I.) 



Order CHENOPODIALES. 



Herbs, often partially woody, or shrubs or trees. Leaves alternate 

 or opposite, occasionally scale-like. Flowers mostly perfect, sometimes 

 monoecious or dioecious. Calyx usually present, the sepals mainly sep- 

 arate. Corolla wanting, or present and of minute or large petals. Androe- 

 cium of 1-several stamens. Gynoecium of a single carpel or of several 

 united carpels, the ovary mostly superior. Fruit an achene, utricle or a 

 berry, or sometimes an anthocarp. 



Fruit a utricle, an achene or a fleshy cone, not an anthocarp. 



Fruit utricular. Fam. 1. CHEXOPODIACEAE. 

 Fruit an achene or a berry-like cone. 



Fruits simple, achenes : flowers not in cone-like 



structures. Fam. 2. PETIVERIACEAE. 



Fruits aggregate : flowers in cone-like structures. Fam. 3. BATIDACEAE. 



Fruit an anthocarp. Fam. 4. PISOXIACBAE. 



FAMILY 1. CHENOPODIACEAE. GOOSEFOOT FAMILY. 



Herbs or woody plants. Leaves alternate or opposite : blades simple. 

 Flowers perfect, polygamous, monoecious, or dioecious, mostly in congested 

 spikes. Calyx of 1, 2, 3, 4, or 5 persistent sepals. Corolla wanting. 

 Androecium of as many stamens as there are sepals. Gynoecium of 2 or 

 more united carpels. Ovary 1-celled. Fruit a utricle, sometimes achene- 

 like. 



1. SALICOENIA [Tourn.] L. Fleshy shrubs or herbs. Leaves opposite, 

 mere scales. Flowers perfect or polygamous, in cavities at the rachis-nodes. 

 Calyx fleshy. Utricle included in the spongy perianth. 



1. S. ambigua Michx. Shrub with decumbent or trailing stems 1-7 dm. long: 

 internodes of the inflorescence 3-4 mm. thick and about as long. GLASSWORT. 

 SAMPHIRE. 



Sandy shores and coastal sand-dunes, nearly throughout Fla. (Cont., IT. /.) 



FAMILY 2. PETIVERIACEAE. PETIVERIA FAMILY. 



Woody plants, usually strong-scented. Leaves alternate: blades firm, 

 entire. Flowers perfect, in virgate spikes. Hypanthiurn present. Calyx 



