FAM. GO. 51 



variously colored bracts, and collected into terminal or 

 axillary inflorescences; calyx of 2-5 herbaceous or cor- 

 olloid sepals; stamens 5 or less, hypogynous, opposite 

 to the sepals; staminodia sometimes present; ovary 1- 

 celled, with 1-5 stigmas; fruit a membranous utricle, rarely 

 a berry. 



1. Anthers 2-celled. filaments distinct. ---..-.-2 



1. Anthers 1-celled, filaments united into a long tube; — leaves opposite. 



blades sessile; flowers subtended by 3 blackish bracts and some- 

 times with bractlets. in dense spikes arranged in panicles; calyx 

 5-cleft; stamens 5. style short or wanting. - Froelichia 



F. Floridana, an erect or ascending, slender herb with few pubescent leaves; the 

 calyx-tube with deeply toothed crests and minute tubercles; spikes at the 

 top of the stem. In dry. sandy places. Spring to Fall. 



2. Perianth present in all flowers; — herbs with alternate leaves, the 



blades flat, undulate or crisped; flowers subtended by 3 green, 

 red or purplish bracts; sepals 2-5. stamens 2-5, styles or stigmas 

 2-3. Waste places. Summer and Fall. - Amaranthus 



A. hybridus, Pigweed. Upper flowers in dense, terminal, drooping spikes; 

 sepals and stamens 5. 



A. spinosus, Spring Amaranth Stems with a pair of spines at each leaf -axil, 

 spikes erect or nodding; sepals and stamens 5. 



A. albus. TumbU-veed. Flowers in small axillary clusters; sepals and sta- 

 mens 3. 

 2. Perianth wanting in the pistillate flowers; — branching stems with 

 alternate, petioled. narrow leaves; dioecious flowers subtended 

 by 1-3 bracts; whitish, staminate flowers with 5 mucronate sepals, 

 and 5 distinct stamens; pistil with 2-5 stigmas, - Acnida 



A. australis, Water-hemp, a stout, smooth, somewhat fleshy herb, widely branch- 

 ing; the staminate flowers in slender spikes, panicled, leafy-bracted at the 

 base, naked above. In marshes near the coast. Summer and Fall. 



Cultivated is Celosia cristata, Cock's comb with crimson to white flowers in 

 spikes, bracts 3. sepals and stamens 5. stigmas 2 or 3. 



60. Corrigiolaceae ^Illecebraceaej, Whitlow-w ort Family. 



Erect or creeping and tufted herbs, with opposite, 

 stipulate, narrow leaves; flowers perfect but incomplete, 

 in clustered or dichotomous cymes; sepals 4-5, more or 

 less united, white or green; petals none; stamens 4-5 with 

 slender filaments; pistil 1, with 1-celled superior ovary, 

 and very short more or less united styles; fruit a utricle 

 or an achene. 



L Sepals 5 united to the middle; 5 bristles, instead of petals, inser 

 with 5 stamens on the margin of the calyx-disk; style slend 



:t. On dry. sandy soil. Summer and Fall. - - Siphoaychia 



S. Americana. Sepals dilated at the apex, white-tipped; style exserted. 

 S. pauciflora. Sepals dilated, white or broadly white-margined; sty lid- 



