DODDER FAMILY 503 
Corolla about an in. long and as broad, pink or white. Calyx without 
bracts at base. Waste places. May-Sept. 
3. C. spithamaeus, L. (Fig. 2, pl. 125.) Upright BiInpWEED. 
Stems erect or curving upward, smooth or mostly downy, not twining or 
the summit slightly twining, 4 to 1 ft. high. Leaves alternate oblong, 
with or without a heart-shaped base, round at apex. Corolla 2 in. long, 
white, a single flower on the flower stem. Calyx enclosed by 2 large 
bracts. Dry sandy soil. May-Aug. 
Famity II]—CUSCUTACEAE. Dopprer FAmMILy 
Long thread-like white, yellowish or reddish vines with leaves 
reduced to small scales, rising from the ground, but becoming en- 
tirely parasitic, lymg upon or twining about herbs or shrubs to 
which they adhere by means of suckers. Flowers in more or less 
densely compact rounded or irregular clusters, white or yellowish. 
Flowers with calyx and corolla, pistil and stamens. Calyx below 
the ovary and not adherent to it, of 5 lobes or divisions; corolla 
bell-shaped, urn-shaped or ee in the tube of which are, 
alternating with the corolla lobes, 5 scales which are finely toothed 
or fringed. At the sinuses of the corolla lobes and above the scales 
arise the 5 short filamented stamens. Pistils 2. Capsule globose. 
CUSCUTA, L. 
Characters as above. 
The scales within the corolla bordered with small rounded teeth, Summit of 
pistil elongated. 
The scales not incurved . sh all teh babel ot, sy ts) Ue sy) sRCuee pilin 
The scales strongly incurved . . C. Epithymum 
The scales within the corolla bordered by | a fringe, Summit ‘of pistil rounded. 
Flowers without flower stems . . . Se eon ao ae (En ACIS 
Flowers with short flower stems. 
Calyx not deeply divided. 
ips of corolla lobes sharp, turning in . . . . C. Coryhi 
Tips of corolla lobes rounded, turning out. 
Capsulem jpomtediie sm nue a euned Mon be C. Gronovii 
CAapsmlenelobose wesras co Me ictaee: Set ccs 1G cephalanthi 
Calyxedeeply divided sw) 3) 2 5. se IClecompacta 
1. C. Epilinum, Weihe. Frax Dopprer. Stem yellow or reddish, very 
slender. Flowers globular, in dense heads, flowers closely connected with 
the stem without flower stem. Corolla with 5 lobes, scarcely exceeding 
the divisions of the calyx; scales within the corolla rounded, the upper 
border with rounded teeth which do not curve inward. The lobes of the 
corolla spreading outward. Growing on flax, hence its name. June. 
2. C, Epithymum, Murr. THyMrE Dopper. Ciover Dopprer. Stem 
reddish, thread-like. Flowers in small dense rounded clusters, without 
flower-stems, the clusters pinkish. Corolla tube longer than the calyx; 
scales within the tube toothed, and strongly curved inward. Found on 
clover and alfalfa in this country. In Europe on thyme, hence its name. 
July-Sept. 
