208 FOUNDATIONS OF BOTANY 
limb somewhat oblique, its lower lobe notched. Pod rather stout. 
Rich, damp woods, especially 8S. W. ; often cultivated. 
91. OROBANCHACEZ. Broom-RAPE FAMILY. 
Leafless brownish root-parasites. Rootstock often tuberous, 
naked or scaly. Stem usually stout, solitary, scaly. Flowers 
spiked or racemed. Sepals 4-5, free from the ovary. Corolla 
hypogynous, irregular, the tube curved; the limb 2-lipped. 
Stamens 4, 2 long and 2 short, inserted on the corolla-tube ; 
anthers 2-celled, the cells spurred at the base. Ovary 1-celled, 
of 2 carpels, style simple, stigma 2-lobed; ovules many. Cap- 
sule 1-celled, 2-valved, few—many-seeded ; seeds very small. 
I. CONOPHOLIS, Wallroth. 
Stems often clustered, stout, covered with scales which 
overlap, the uppermost ones each with an axillary flower, 
thus forming a spike. Calyx irregularly 4—5 cleft, split down 
the lower side. Corolla swollen below, decidedly 2-lipped, the 
upper lip arched. Stamens projecting. 
1. C. americana, Wallroth. Squaw-rRooT, CANCER-ROOT. Stems 
3-6 in. high, yellowish or yellowish-brown. Flowers numerous, in- 
conspicuous. Corolla dirty white or pale brown. In oak woods, 
not very common. 
Il. APHYLLON, Mitchell. 
Brownish or whitish plants with naked scapes borne on 
scaly, mostly underground stems. Calyx regular, 5-cleft. 
Corolla 5-lobed, slightly irregular. Stamens not projecting 
from the corolla-tube. 
1. Aphyllon uniflorum, Gray. ONE-FLOWERED CANCER-ROOT. 
Slightly covered with clammy down. Stems very short-branched, 
each with 1-3 1-flowered scapes 3-5 in. high. Calyx-lobes lance- 
awl-shaped, half as long as the corolla. Corolla yellowish-white, 
veiny, purple-tinged, palate with 2 yellow bearded ridges. Damp 
woods. 
2. A. fasciculatum, Gray. Stem scaly, upright, 3-4 in. high above 
ground and generally longer than the numerous 1-flowered pedun- 
cles. Calyx-lobes short, triangular. Parasitic on wild species of 
Artemisia, etc., in sandy and loamy soil N, W. and W, 
