COBAEA 
3*8 
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- 
trdge , VI.). 
Coccinia Wight et Am. 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. uvifei'a L., and others, produce edible fruit (seaside grape). 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. Ionopsidium DC., q.v . 9 and Kernera 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. 
Cochlospermaceae. Dicotyledons (Archichl. Parietales). An order 
including Cochlospermum, &c., sometimes separated from Bixaceae 
on the ground of oily endosperm, the other B. being starchy. 
CocMospermum 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. The best known is C. 
nucifera L., the coconut palm, cult, throughout the tropics. It 
grows especially well near to the sea, and its fibrous and woody 
fruit is capable of floating long distances uninjured, hence it forms 
a characteristic feature of marine island vegetation, and indeed 
probably became very widely distributed in early times by this 
means. It is a tall palm with large pinnate leaves and a dense 
