CONVOLVULACEAE 1091 
on peduneles. Calyx naked, not subtended 
y bracts. Calyx-lobes goa equal. Corolla 
short-funnelform, white or pink, sometimes 
pubeseent without. ous mostly 2-celled. 
elaine globose or ovoid. Seeds glabrous.— 
t 40 species, widely distributed. One 
Ru 
1. S.arvensis (L.) Small. rud eeu at 
the base, the branches pros low 
twining : leaf- blades aa A NA 
or linear-hastate, 1-5 em. long: peduncles 
shorter than the "leaves: calyx-lobes oval or 
c 3- di 5 mm. long: corolla white 
r pin a 2¢ “on ng.— ( FIELD-BINDWEED. )—-Fields, waste- T and road- 
Hag va various pence: Ala. to Ark., Calif., Ont., an nd N. S. Nat. of Eurasia. 
4. TURBINA i Perennial, high climbing or trailing vines. Leaf- 
blades ov eds eordate, glabrate, entire. Flowers in many-flowered, corymbose, 
axillary, peduncled clusters, near the ends of 
branches. ana eoriaceous. Corolla ied 
nelform from the base. Ovary 2-celled, 
broad, aeute, indehiscent, l-celled and 1- 
seeded by abortion. Seeds oblong, finely 
WKN Mei. 20 species, in tropieal 
regions. 
1. T. corymbosa (L.) Raf. Stems trailing, 
several m. long. s narrowly ovate or 
elliptic, subacute, 6-8 mm. long, dark-colored 
with whitish ae margins: corolla white 
ien E bands, 3—4 em. long; sapsule 8-10 
Ue moea e y olia Choisy 
me Mills sp.]—H ammoeks, Coastal Plai 
Cape Sable region, Florida and the Keys oid S Tex.—Fall—wint. 
15. ARGYREIA Lour. Twining vines, the pubescence commonly sericeous. 
Leaf-blades broad, cordate, usually — Flowers in axillary peduneled 
cymes. Calyx often colored within: lobes 
latier. Corolla showy, campanulate-fun- 
nelform. Ovary 2-celled. Stigma slightly 
2-lobed. Fruit baccate, indehiscent. —About 
25 species, in tropical Asia and Afri 
1. A. speciosa (L.) Sweet. Stem and 
branches ae id leaf-blades broadly 
ovate, 12— m glabrate above, silv- 
ery-pubese an re the veins conspicu- 
ous: d vate- elliptic Ei glabrous 
within: 4—5 long: corolla-tube 
sepal 
inflated- oylindric, about 5 em. pe 
purple.—Hammocks along d a Fla. 
Nat. of trop. Asia, and eult.— (V. I.) 
