3 io 
COBAEA 
is highly sensitive to contact (as may be seen by rubbing one side and 
watching it for 5 minutes) ; the hooks prevent the nutation from 
dragging away a branch before it has had time to clasp its support 
(Darwin, Climbers , p. 106). The fir. presents interesting features. 
The closed bud stands erect on an erect stalk, but when it is going to 
open, the tip of the stalk bends over. The flower is very pro- 
tandrous with movement of sta. and styles. At first it is greenish 
with an unpleasant smell, thus presenting the characters of a fly- 
flower (p. 92), but afterwards it becomes purple with a pleasant 
honey-like smell (bee-flower). Afterwards the stalk goes through 
several contortions (cf. Linaria, and see Scholtz in Cohn’s Bei- 
trage, Vi). 
Coccinia Wight et Arn. Cucurbitaceae (iv). 14 sp. trop. As., Afr. 
The fruit of C. indica W. and A. is largely eaten as a vegetable 
in India. 
Coccocypselum P. Br. Rubiaceae (1. 7). 8 sp. trop. Am. Hetero- 
styled. 
Coccoloba Linn. Polygonaceae (in. 5). 125 sp. trop. and sub-trop. 
C. uvifera L., and others, produce edible fruit. For C. platyclada 
F. Muell. see Muehlenbeckia. 
Cocculus DC. Menispermaceae. About 25 sp. trop. and sub-trop. 
[The grains known as Cocculus are those of Anamirta.] 
Cochlearia Tourn. (incl. lonopsidium DC., and Kemera Medic.). 
Cruciferae (11. 6). 21 sp. Eur., As. Minor. C. officinalis Linn, 
(scurvy-grass) occurs in Brit, in various forms with more or less 
fleshy leaves, chiefly at the sea-side and on mts. (p. 187); other sp. 
also occur, including C. Armoracia L. (horse-radish) as an escape. 
The thick root of this sp. is esteemed as a condiment. 
Cochliostema Lem. Commelinaceae. 1 sp. Ecuador, C. odoratissima 
Lem., a favourite greenhouse plant. The filaments of the fertile 
sta. develope both laterally and beyond the anthers into large wings. 
Anther-loculi spiral. See Nat. PJl ., or Masters in Linn. Soc. 
Journ. XIII. 
Cochlospermum Kunth. Bixaceae. 13 sp. trop. Mostly xerophytes; 
some have stout tuberous underground stems; many drop their leaves 
in the dry season (p. 168). 
Cocos Linn. Palmae (iv. 7). 30 sp. trop. S. Am., W. Ind. C. nuci- 
fera L. (cocoa-nut palm) in all trop. countries, and largely cultivated. 
It grows especially well close to the sea and its fruit is capable of 
floating long distances uninjured, hence it forms a characteristic 
feature in the islands of the Pacific (p. 190). It is a tall palm with 
pinnate leaves and dense monoecious infl. The fruit is one-seeded. 
The outer layer of the pericarp is fibrous, the inner extremely hard 
(the shell of the cocoa-nut as sold in shops). At the base are three 
marks, corresponding to the three loculi of the ovary, two of which 
have become obliterated. Under one of these marks is the embryo. 
