CEROPEGIA ,33 



Ceratostigma Bunge. Plumbaginaceae. 10 trop. Afr. to China. The 

 total infl. is racemose, the partials dichasial. 



Ceratostylis Blume. Orchidaceae (n. a in). 30 Indomal., Polyn. 



Ceratotheca Endl. Pedaliaceae. 5 trop. and S. Afr. 



Ceratozamia Brongn. Cycadaceae. 6 Mexico. 



Ceraunia Nor. Inc. sed. Nomen. 



Certaera L. (excl. Tanghinia Thou.). Apocyn. (i. 3). 6 Indomal., 

 Madag. The floating fr. are familiar on the coast. 



Cerberlopsis Vieill. Apocyn. (inc. sed.). i New Caled. 



Cercanthemum Van Tiegh. Ouratea Aubl. (Ochnac. ). 



Cercestis Schott. Araceae (iv). 9 W. Afr. 



Cercidiphyllaceae (EP. \ Magnoliaceae p.p. BH.}. See Supplement. 



Cercidipliyllum Sieb. et Zucc. Cercidiph. 2 Japan. Useful wood. 



Cercidium Tul. Leguminosae (ll. 7). 8 warm Am. 



Cercis L. Legum. (11. 4). 5 N. temp. C. Siliqiiastnim L. (Judas- 

 tree; Judas is said to have hanged himself on one), cult. orn. tree in 

 Brit. The fls. appear before the 1., in bunches on the older twigs, 

 and have a very papilionaceous look, the two lower pets, enclosing 

 the essential organs. Serial buds in the axils. Good wood. 



Cercocarpus II. B. et K. Rosaceae (in. 3). 10 Mex. to Oregon. 



Cercopetalum Gilg. Capparid. (11). i Cameroons. 



Cercophora Miers. Lecythidaceae. i Amazon valley. 



Cerdia Mo9- et Sesse. Caryophyllaceae (i. 3). 2 Mex. 



Cereals, the grasses (Gramineae) yielding food to man, wheat, rice, 

 maize, oats, barley, rye, millet, &c. 



Cereus Mill. (BH. inch Ccphalocerens Pfeiff., Echinocereus Engehn., 

 Echinopsis Zucc., Pilocereus Lem.). Cactaceae (ill. i). 220 Am., 

 W. Ind. Most are erect cylindrical forms, rarely branched, with ribs 

 or less often mammillae (see fam.). C. giganteiis Engelm. (Texas) is 

 the largest of the cacti; it grows to 70 ft. high and 2 ft. thick with 

 candelabra-like branching. C.grandiflorus Mill, is the night-flowering 

 cactus, whose sweetly-scented fls. open in the evening and wither 

 before morning. Others, e.g. C. triaugularis Mill., behave in the 

 same way. These sp. are mostly trailing forms with adv. r. upon 

 the stems. A number of cases of close resemblance may be found be- 

 tween sp. of C. and sp. of Euphorbia. Fr. of most ed., often preserved. 



Ceriferous, wax-producing. 



Cerinthe (Tourn.) L. Boraginaceae (iv. 4). 7 Eur., Meclit. 



Ceriops Am. Rhizophoraceae. 2 palaeotrop. coast. 



Cerium Lour. Inc. sed. i China. 



Cernuus (Lat. ), nodding. 



Cerolepis Pierre (Cainptostylus EP.}. Flac. (i). None described. 



Ceropegia L. Asclepiadaceae (ll. 3). 120 Afr., As., Austr. Erect 

 or twining herbs or undershrubs, xero. Many have tuberous root- 

 stocks, others are leafless and sometimes have fleshy Stapelia-like 

 stems. The fls. form a trap like Arhtolochia Clematitis. The C-tube 

 widens at the base and at the top the teeth spread out, but in some 

 they hold together at the tips, making a sort of umbrella. The tube 

 is lined with downward pointing hairs, and small flies, attracted by 

 the colour and smell, creep into the fl. and cannot escape till the hairs 

 wither, when they emerge with pollinia on their proboscides. 



