330 
CORYLUS 
at first) gives a one-seeded nut, enclosed in a cup of green leafy 
nature, which is really the combined bract and 
bracteoles a, a', /S', very much developed. The stem 
fir. is chalazogamic (see art. Chalazogamae ). a' a' 
The nuts of this and other sp. are valuable as a ? fir. # ? fir. /3 
dessert fruit &c. (hazel-nut, cob-nut, filbert). / 3 ' /S' 
The wood is elastic, but cannot be obtained in bract 
large boards. Oil is expressed from the seeds. 
Corynephorus Beauv. ( Weingaertneria Bernh.). Gramineae (ix). 
3 sp. Eur. C. canescens Beauv. ( IV. or Air a canescens) in Brit. 
Corypha Linn. Palmae (i. 2). 6 sp. Ceylon, Indo-mal. The infl. 
terminates the life of the tree and is of gigantic size. C. umbraculi- 
fera L. is the Talipot palm of Ceylon; it grows to a great size (up to 
100 feet in height). The leaves are used as umbrellas, and for 
thatching, also as writing material (a metal stylus being used). 
Cosmanthus Nolte = Phacelia Juss. 
Cosmibuena Ruiz et Pav. (1802). Rubiaceae (1. 4). 6 sp. trop. Am. 
There is good bud-protection by means of the stipules of the last- 
opened leaves. 
Cosmibuena Ruiz et Pav. (i794) = Hirtella Linn. (Rosaceae.) 
Cosmos Cav. (Cosmea Willd.). Compositae (v). 20 sp. Am. 
Costus Linn. Zingiberaceae. 25 sp. trop. Am., W. Afr., As., Austr. 
The labellum is very large, the lateral staminodes wanting, the sepals 
and petals comparatively small. Projecting in the centre of the fir. 
is the fertile petaloid sta. with the anther on its anterior face; the 
style reaches just above this. The floral mechanism thus resembles 
that of Iris. 
Cotinus (Tourn.) Linn. = Rhus Linn. C. coggygria Scop. = E. Cotinus. 
Cotoneaster Rupp. Rosaceae (11. 4). 30 sp. N. temp. C. vulgaris 
Lindl. was till lately found on the Great Orme’s Head near Llandudno, 
but is now extinct in Brit. In the Alps the flr. is visited solely by a 
wasp ( Polistes gallica) whose nests are often found attached to the 
rocks where the plant is growing. The flr. is protogynous with self- 
fertilisation in default of insect visits. Several sp. are favourites in 
shrubberies &c. 
Cotula (Tourn.) Linn. (excl. Cenia Juss.). Compositae (vn). 50 sp. 
S. Hemisph., Medit., As., N. Am. 
Cotyledon Tourn. ex Linn. (incl. Echeveria DC.). Crassulaceae. 90 sp. 
Afr., Eur., As., Mexico, S. Am. C. Umbilicus Linn, (penny-wort) in 
Brit. Petals united into a tube. Leaves succulent. [Linn. Soc. 
Journ. xxx. p. 292.] 
Coumarouna Aubl. = Dipteryx Schreb. 
Couratari Aubl. Lecythidaceae. 8 sp. S. Am. The bark yields a 
soft fibre used for making clothing. 
Couroupita Aubl. Lecythidaceae. 9 sp. trop. S. Am. The firs, of 
C. guianensis Aubl., the commonest sp., are borne on the old stems 
