CONVOLVULACEJE. (CONVOLVULUS FAMILY.) 351 
tube of the corolla cylindrical (ventricose after flowering), twice the 
length of the obtuse spreading lobes and of the ovate obtuse calyx- 
lobes, in fruit borne on the summit of the depressed pod; scales ovate, 
cut-fringed; stamens shorter than the lobes of the corolla. (C. Cepha- 
l&nthi, Engelm.) — Swamps, common through the Western States, 
on Cephalanthus and various tall herbs. 
* * Ovary more or less pointed at the apex {with a stylopodium ) : pod 
brownish, of firmer texture. 
Flowers sparingly bracted: calyx 4 - 5-cleft. 
4. umbrosa, Beyrich (fide Engelm.). Flowers pedun- 
cled in umbel-like cymes; tube of the (mostly 4-cleft) fleshy corolla 
cylindrical, as long as the ovate acutish and minutely crenate inflexed 
lobes , and the acute keeled calyx-lobes; scales minute and few-toothed, 
appressed; pod depressed-globose, covered with the remains of the co¬ 
rolla. (C. Coryli, Engelm.) — Prairies and barrens, Western States. 
Allied to the last. 
5. C. Gl'OllOVii, Willd. Flowers peduncled, in close or open 
cymes; corolla bell-shaped, the tube longer than the ovate and obtuse 
entire open lobes and the ovate obtuse and somewhat keeled calyx- 
lobes ; scales large and converging , copiously fringed , confluent at the 
base; the remains of the corolla persistent at the base of the globose 
pod. (Caly£ and corolla more or less dotted with pellucid glands: 
these are waiting in C; Saururi, Engelm., which also has a more open 
corolla, mbre* oblong lobes, &c.; i)ut it is probably no more than a 
variety of the present species.) (C. vulgivaga, Engelm. C. Ameri¬ 
cana, Pursh , &c. C. umbrosa, Torr. FI. JY.'Y.) — Low grounds, ex¬ 
tremely common, especially northward and eastward; chiefly on 
herbs. Aug., Sept. — C. rostrAta, Shuttlew., a larger-flowered spe¬ 
cies with a pointed pod, common in the Alleghanies from Maryland 
southward, is probably to be found in Pennsylvania. 
Calyx of 5 separate broad sepals, imbricated beneath with several 
nearly similar bracts : remains of the corolla in fruit borne on the 
. globose somewhat pointed pod. (Lepidanche, Engelm.) 
6. <5. compacta, Juss. Flowers sessile, in dense clusters; 
bracts (4 - 5) and sepals orbicular, concave, appressed, slightly crenate, 
much shorter than the slender cylindrical tube of the corolla; stamens 
shorter than the linear-oblong spreading lobes of the corolla; scales 
pinnatifid-fringed. (C. eOtonkta, Beyrich, fide Engelm.) — Dry ground, 
on shrubs, See,., S. Penn, and southward. 
7. C. glomerata, Choisy. Flowers sessile, very densely 
clustered, forming knotty masses closely encircling the stem of .the fos¬ 
ter plant, much imbricated with scarious oblong bracts with recurved- 
spreading tips; sepals nearly similar, shorter than the oblong-cylin¬ 
drical tube of the corolla; stamens nearly as long as the oblong-lan¬ 
ceolate spreading or reflexed lobes of the corolla; scales large, fring- 
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