colliculose 
Commissure 
many phanerogams which secrete 
gum. 
collic’ulose, colliculo’sus (colliculus, a 
little hill), covered with little round 
elevations or hillocks. 
collifferous (collum, a collar), bear- 
ing a collar, as the stipe of an 
Agaric ; Colliform’e (forma, shape), 
an ostiole, the orifice being length- 
ened into a neck. 
colliga’tus (Lat., fastened together), 
collected (S. F. Gray). 
colli‘nus (Lat., appertaining to a hill), 
growing on low hills. 
Collum (Lat. neck); (1) the collar or 
neck of a plant, see CoLtnar; (2) 
the lengthened orifice of the ostiole 
of Lichens. 
Col'loids (xdAd\a, glue; eldos, resem- 
blance), substances of a gelatinous 
character ; opposed to crystalloid ; 
adj. colloidal. 
colo’nial (colonia, a band of settlers), 
in cell-division, every cell depend- 
ent on the other cells of the organ- 
ism at large (Hartog); Col’onist, 
H. C. Watson’s term for weeds of 
the cultivated land and about 
houses, seldom found elsewhere ; 
Colony, see CoENOBIUM. 
colorif'ic (color, colour, facio, I make), 
applied to those Lichens which 
yield a dye. 
Col’our, col’oured, possessing any tint 
but green, technically white is re- 
garded as a colour, green is not; 
col’ourless, pale, and hyaline; in 
Lichens, not brown. 
Colpench’yma («é6A70s, bosom ; éyxupza, 
an infusion), cellular tissue with 
sinuous cell-walls. 
Colum + (Lat. a strainer) = PLACENTA. 
columbi’nus (Lat,), dove-coloured ; 
sometimes used for the tint of a 
blue pigeon. 
Col’umel (columelia, a small pillar), 
Jaccard’s term for lignified tissue 
formed in place of the fertilized 
archegonium, it bears at its extrem- 
ity the privileged embryo, the only 
one which develops, as in Hphedra 
helvetica, C. A. Mey.; Columel'la ; 
(1) a persistent central axis round 
58 
which the carpels of some fruits 
are arranged as in Geranium; (2) 
the axis of the capsule in Mosses ; 
(3) the receptacle bearing the spor- 
angia of Trwhomanes, and other 
Ferns; (4) the central portion of 
the anther in Solanaceae (Halsted) ; 
(5) a sterile axial body within the 
sporangium of Fungi; columel’li- 
form (forma, shape), shaped like a 
small pillar or column. 
Col’umn, Colum’na (Lat. a pillar), the 
combination of stamens and styles 
into a solid central body, as in 
Orchids; colum’nar, columna’ris, 
having the form of a column, as 
the stamens of Malva. 
com, in Latin composition, a modifica- 
tion of con, with. 
Co’ma (Lat. the hair) ; (1) the hairs at 
the end of some seeds ; (2) the tuft 
at the summit of the inflorescence, 
as in the pineapple; (3) the entire 
head of a tree; co’mal Tuft, » tuft 
of leaves at the tip of a branch; 
co’mate, coma’tus, tufted. 
combina’te - veno’sus { (Lat.), joined 
veins, when in a leaf the lateral 
veins unite before reaching the 
margin. 
comb-shaped, pectinate. 
combi’ned Hy’brids, hybrids hav- 
ing the strain of more than two 
species, as one arising from a 
simple hybrid + another hybrid or 
species. 
Com’bus, used by S. F. Gray for Cor- 
mvs, for which it is probably a mis- 
print. 
Com’ites (pl. of comes, a companion), 
Hegelmaier’s term for certain cells 
occurring in the embryo-sac of* 
Lupinus. 
commen’sal (com=con, with ; mensa, a 
table), ased of two organisms living 
in mutual beneficent relations, as 
in the dual-lichen theory, where the 
Fungus stimulates the host-Algae 
to greater energy of function; 
Commen’salism, the state in ques- 
tion. 
Com’missure, Commissu’ra (Lat., a 
joint or seam), the face by which 
