Dec., 1905.] 
Key to the Ohio Dogwood?. 
419 
Fig. 1 . — Small immature C. oblongtis in a moulting nest. 
Notice lining of silk at X; this was not sketched over the entire 
inside of the nest as it would have obscured the fibres that sup- 
port the animal. Hairs on ventral scutae are as in nature. 
Note that one leg lacks a segment; this is as in nature. Sketched 
from living animal (torpid) in the nest. While drawing I noted 
two droplets of liquid accumulate near a joint and spread over 
the surface. 
KEY TO THE OHIO DOGWOODS IN THE WINTER CONDITION 
John H. Schaffner. 
Conius L. Shrubs or trees with opposite, whorled, or some- 
times alternate leaf scars; twigs green, red, brown, or gray, 
glabrous or pubescent; terminal bud present with 2 acuminate 
outer scales; axillary buds single, minute or well developed; leaf 
scars narrow, u-shaped, usually connected by a line or ridge, the 
uppermost notched; bundle scars 3, stipular scars none; pith 
small, solid, cylindrical; fruiting peduncle self-pruned, producing 
distinct terminal scars. 
1. Leaf scars opposite; shrubs or trees. 2. 
1. Leaf scars alternate; twigs green or yellowish -green, glabrous; inter- 
nodes very unequal, axillary buds usually minute; small trees or 
erect shrubs. C. altcrnifoha L. Blue Dogwood. 
1. Low geophilous shrubs with small creeping rhizomes and herbaceous 
aerial stems, 4-12 in. high, with a whorl of leaves at the summit. 
C. canadensis L. Dwarf Dogwood. 
2. Axillary buds usually minute and undeveloped except at the base of 
the peduncle which is self-pruned ; twigs green or reddish-green, 
glabrous or nearly so; a small tree with rough, reticulate bark; 
flowers in involucrate heads which are prominently developed in 
winter. C. panda L. Flowering Dogwood. 
2. Axillary buds normally well developed and prominent; typical 
shrubs, or if tree-like very pubescent ; flowers cymose and not 
involucrate. 3. 
3. Twigs green or greenish, glabrous or nearly so, warty dotted; a com- 
pact shrub with upright, grayish stem. 
C. circinata L'Her. Roundleaf Dogwood. 
3. Twigs bright red or red-purple, glabrous or nearly so; a spreading 
shrub rooting freely and multiplying by stolons; usually in wet 
places. C. stolomfcr Mx. Red-osier Dogvvood. 
3. Twigs pubescent, rarely glabrate when old, greenish or reddish brown 
or gray. 4. 
4. Twigs silky downy, usually purplish; fruit blue; a shrub with spread- 
ing branches growing in wet soil. 
C. amomum Mill. Silky Dogwood. 
4. Twigs very rough pubescent, brownish or reddish-brown; fruit white; 
erect or tree-like shrubs in river bottoms and moist or drv soil. 
C. asperifolia Mx. Roughleaf Dogwood. 
4. Twigs glabrate, with scattered hairs, gray, rather slender; fruit white; 
a much branched shrub. 
C. candidissinia Marsh. Panicled Dogwood. 
