GLOSSARY 715 
CotuMeL’LA,—The end cell wall of an aerial hypha that bulges into the sporan- 
gium; also applied to the axis of a capsule. 
Co.’umn.—The united stamens and carpels in Orchids. 
Co.’umMN CELis.—Hour-glass shaped cells forming a layer beneath the palisade- 
epidermal layer of leguminous seeds. 
Co’ma.—A tuft of hairs, as found on the seeds of Milkweeds. 
Com’missuRE.—The contiguous surfaces of two carpels as in the flowers and fruits 
of the Parsley Family. ; 
CompAn’Ion CELLs.—Parenchyma cells associated with sieve tubes and having a 
narrow cavity, abundant protoplasm, large nuclei and the wall adjoining the 
sieve tube marked by transversely elongated pits. 
ConcEn’TrIic.—Applied to several circles or whorls one within the other. Con- 
centric vascular bundles are those in which the xylem mass surrounds the 
_ phloem mass or vice versa. 
Concep’TACLE.—A sac bearing the fruiting organs in certain Alga and Fungi. 
Con’puct’Inc Bun’pLE.—(See Vascular Bundle.) 
Con’pucT’ING PAREN’cHYMA.—Somewhat elongated parenchyma cells serving 
primarily for the conduction of fluids. 
Conpu’PLICATE.—Folded together lengthwise, as for example the bud leaves of 
the oak or peach. 
Con 'tA.—Asexual spores cut off from the ends of hyphz or sterigmata by Penicil- 
lium, Aspergillus, Peronospora, Claviceps, etc. 
Conw’1opHore.—A hypha bearing conidia. 
Conyuca’r10n.—One of the sexual methods of reproduction where two like sexual 
cells unite to form a zygospore. 
Con’NATE.—Applied to parts that have grown together, as the bases of two opposite 
leaves. 
ConnEctT’IvE.—The continuation of the filament of the stamen that connects the 
two lobes of the anther. . 
Connt’vENT.—Brought close together; converging. 
Con’voLutrE.—Rolled lengthwise from one edge, as the leaves in the buds of the 
Wild Cherry and Plum. 
Cor’DATE.—Heart-shaped. 
CorrA’/cEous.—Leathery in texture. 
Cork (Su’BEROus TissuE).—A protective tissue derived from the phellogen and with 
cell walls waterproofed with suberin. 
Cork Camp’1um.—(See Phellogen.) 
Corm.—A solid, swollen, fleshy underground stem. 
Coro’LA.—The inner whorl of floral envelopes composed of petals. 
Coro’na.—A crown like appendage in the throat of the corolla, as in the flowers 
of Narcissus and Silene. : 
Cor’TEx.—That region in dicotyl and gymnosperm roots of primary growth and 
in roots and stems of monocotyledons between the outer protective tissue or 
epidermis and the pericycle; in dicotyl and gymmosperm roots of secondary 
growth or in barks between phellogen and phloem or pericycle. The Primary 
Cortex is the region lying between the pericycle and the epidermis or the 
secondary tissues produced by the phellogen. The SeconpAry Cortex is 
all that tissue laid down by the phellogen on its inner face. 
Cor’TICAL PAREN’CHYMA.—The parenchyma of the cortex. 
