CAMPANULA 
281 
Calotropis R. Br. Asclepiadaceae (11. 2). 3 sp. trop. As., Afr. 
Caltha (Rupp.) Linn. Ranunculaceae (2). 16 sp. temp. C. palustris 
L., in Brit., is the marsh-marigold or king-cup. Honey is secreted 
by the cpls., and the firs, have no ‘honey leaves,’ the calyx being 
coloured. 
Calycanthaceae. Dicotyledons (Archichl. Ranales). 2 gen. with few 
sp. N. Am. and China. Shrubs, usually aromatic, with opp., simple 
leaves and terminal acyclic firs, on short shoots. Perianth 00 , peri- 
gynous, spiral, showing gradual transition from sepaloid to petaloid 
leaves. Sta. 5 — 30. Cpls. 00, in hollowed axis; 2 anatropous ovules in 
each. Achenes enclosed in axis. Embryo large with spirally wound 
cotyledons, in slight endosperm. Genera: Calycanthus, Chimonanthus. 
[Placed in Ranales by Benth.-Hooker, in Polycarpicae by Warming.] 
Calycanthus Linn. Calycanthaceae. 3 sp. N. Am. C. Jloridus L. 
is the Carolina allspice, a favourite garden shrub. 
Calycera Cav. Calyceraceae. 10 sp. S. Am. 
Calyceraceae Dicotyledons (Sympet. Campanulatae). 3 gen. with 23 
sp., S. Am. Closely allied to Compositae. Herbs with alt. exstip. 
leaves. Firs, in heads with involucre of bracts, $ or $ ? , epigynous, 
4 — 6-merous. Calyx leafy. Filaments of sta. united, anthers free 
or slightly coherent at base. Ovary i-loc. ; ovule 1, pendulous, ana- 
tropous; stigma capitate. Embryo straight in slight endosperm. 
Genera: Boopis, Calycera, Acicarpha. [Placed in Asterales by 
Benth.-Hooker, in Dipsacales by Warming.] 
Calyciflorae (Benth.-Hooker). The 3rd series of Polypetalae (p. 133). 
Calycinae (Benth.-Hooker). The 4th series of Monocotyledons (p. 136). 
Calypso Salisb. Orchidaceae (8). 1 sp. cold N. temp. 
Calyptranthes Sw. Myrtaceae (1). 70 sp. trop. Am. 
Calyptrocalyx Blume. Palmae (i y * 6). 2 sp. Austr., Moluccas. 
Calystegia R. Br. Convolvulaceae (1. 4). 7 sp. temp, and sub-trop. 
2 in Brit., C . Soldanella R. Br. on the coasts, and C. sepium R. Br., 
the large convolvulus of our hedges. The fertilisation of this sp. 
depends largely on the visits of a particular hawk-moth ( Sphinx convol- 
vuli) and the distribution areas of the two correspond to some extent 
(cf. Aconitum). Often united to Convolvulus (q-v.). 
Camassia Lindl. Liliaceae (v). 2 sp. N. Am. (Quamash). 
Camelina Crantz. Cruciferae (iv. 14). 8 sp. Eur., Medit. (1 Brit.). 
Camellia Linn. Theaceae. 8 sp. Ind., China, Japan. C. japonica L. 
and others are largely cultivated, and many varieties and double- 
flowered forms exist. The genus is often united to Thea (q.v.). C. 
Thea Link., C. viridis Link., and C. Bohea Lindl. = T. sinensis L. 
Camoensia Welw. Leguminosae (in. 1). 2 sp. W. trop. Afr. 
Campanales (Benth.-Hooker). The 3rd cohort of Gamopetalae (p. 134). 
Campanula (Toum.) Linn. Campanulaceae (1. 1). Abt. 240 sp. N. 
temp., chiefly Medit. 8 in Brit. The commonest sp. is C. rotundi- 
folia L., the blue-bell of Scotland (in England the hare-bell). The 
