68 AMARANTHACEAE. 



Utricle wholly or partly surrounded by the crested, tubercled, or winged 

 accrescent bracts. 



1. A. cristata H.B.K. Plants green, 3-6 dm. tall: leaf-blades oblong to 

 oblong-lanceolate, 1.5-3 cm. long: mature bracts fiabellate, 2-3 mm. wide, 

 sharply toothed, the faces with 2-4 tubercles. Coastal sand-dunes and shores 

 of Bay Biscayne. F. K. (Ber., Bah., Cuba, Ant.) OKACIIK. 



3. 8AUCORNIA | Tmirn.J L. Fleshy herbs or shrubs. Leaves opposite, 

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

 Calyx fleshy. Utricle included in the spongy perianth. GLASSWOK?. 

 SAMPHIRE. 



Annual : sterna erect. 1. 8. Btg&oviL- 



Perennial : stems decumbent or trailing. 2. S. amtigua. 



1. 8. Bigelovii Torr. Annual, stout, 1-6 dm. tall: internodes of the inflo- 

 rescence about as long as thick. Coastal sand-dunes. F. K. (Hah.. Cuba, 

 Ant.) 



2. 8. ambigua Michx. Perennial, the decumbent or trailing stems 1-7 dm. long: 

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

 Bay Biscayne and coastal sand-dunes. F. K. (Ber., Bah., Cuba, Ant.) 



4. DONDIA Adans. Fleshy leafy herbs. Leaves alternate: blades thick 

 or terete, entire. Flowers perfect or polygamous. Sepals hooded, keeled at 

 maturity. Filaments very short. 



1. D. linearis (Ell.) Millsp. Plants glabrous, 1-9 dm. tall, diffusely branched: 

 leaf-blades nearly terete, linear, 1-5 cm. long, acute: seeds about 2 mm. wide, 

 reticulate. Shores of Bay Biscayne. F. K. (Bah., Cuba.) SKA-BUTE. 



FAMILY 2. BASELLACEAE. MADEIRA-VINE FAMILY. 



Somewhat succulent vines, with tuber-bearing rootstocks. Leaves 

 alternate: blades relatively broad, entire. Flowers perfect in spike-like 

 racemes. Calyx of 2 sepals, sometimes winged in fruit. Corolla of 5 often 

 somewhat colored petals. Androecium of 5 stamens borne opposite the 

 j>etals. Gynoecium 3-carpellary. Ovary superior, 1-celled. Fruit utricular. 



1. BOUSSINGAULTIA H.B.K. Vines. Leaf -blades of an ovate type, 

 rather fleshy. Racemes axillary and terminal. Sepals 2, nearly flat, not 

 winged. Petals 5, longer than the sepals. Stigmas cleft. 



1. B. leptostachya Moq. A glabrous much branched vine. Leaf-blade* ovate, 

 2.5-6 cm. long, acute, entire, abruptly narrowed or subcordate at the base: 

 racemes slender, 5-17 cm. long: petals greenish- white or maroon, oval or 

 elliptic-oval, 1.5-2.5 mm. long, spreading in antheeis. Pinelands. Nat. of 

 Trop. Am., and cultivated. F. K. (Cuba, Ant.) MADEIRA-VINE. 



FAMILY 3. AMARANTHACEAE. AMARANTH FAMILY 



Herbs, shrubs, or trees. Leaves alternate or opposite, estipulate: 

 blades entire or nearly so. Flowers perfect, polygamous, or dioecious, in 

 spikes or panicles with scarious or colored bracts. Calyx of 2-5 mostly 

 distinct sepals. Corolla wanting. Androecium of 5, or fewer, distinct or 

 monodelphous stamens. Oynoecinm of 2 or more united carols. Ovary 

 1-celled. Fruit a utricle or pyxidium, or rarely baccate. 



