184 CRABBEA 



Crabbea Harv. Acanthaceae (iv. A). 12 trop. and S. Afr. 



Cracca Benth. ex Oerst. Leguminosae (in. 6). 6 trop. Am.; do. L. 

 = Tephrosia Pers. ; do. (Riv.) Medic. = Vicia Tourn. p.p. 



Craibia Harms et Dunn. Leguminosae (in. 6). 15 trop. Afr. 



Craibiodendron W. W. Smith. Ericaceae (n. i). i Burma. 



Crambe Tourn. ex L. Cruciferae (2). 20 Eur., Meclit., As., Polynes., 

 Patagonia. C. maritima L. (sea-kale) on coast of Brit, has 1. fleshy 

 and waxy. The young 1. blanched form a veg. 



Cranberry, Vaccinium Oxycvccus L. 



Crane's bill, Geranium pratense L., &c. 



CranicMs Sw. Orchidaceae (11. 2). 25 trop. Am., W.I. 



Craniolaria L. Martyniaceae. 3 S. Am. 



Craniospennum Lehni. Boraginaceae (iv. 2). 3 temp. As. 



Craniotome Reichb. Labiatae (vi). i Himalaya. 



Cranocarpus Benth. Leguminosae (ill. 7). 2 Brazil. 



Crantzia Scop. (Alloplectus Mart. EP.). Gesneriaceae (i). 35 trop. 

 Am.; do. Nutt. Umbelliferae (in. 5). i Am., Austr., N.Z.; do. 

 Pohl. Inc. sed. Nomen. 



Craspedia Eorst. f. Compositae (4). 4 temp. Aust., JM.Z. 



Craspedodictyum Copeland (Gynmogramme p.p.). Polypodiaceae. 

 2 Malay Arch., Polynesia. 



Craspedorachis Benth. Gramineae (n). 2 trop. Afr. 



Craspidospermum Boj. ex DC. Apocynaceae (i. i). i Madag. 



Crassocephalum Moench. (Gytiura EP.}. Comp. (8). 20 warm Afr., 

 As. 



Crassula Dill, ex L. (incl. Dinacria Harv., and Til/aea Michx. EP.). 

 Crassulaceae. 150 S. Afr., a few Abyss, and Himal., chiefly succu- 

 lent 1. xero. In C. lycopodioides Lam. the 1. are narrow and closely 

 packed, giving to the pi. the habit of a Lycopodium. In C. {Rochea) 

 falcala Wendl. the connate decussate 1. stand almost edgewise, and 

 are very fleshy ; some of the epidermal cells are swollen above the 

 rest into large bladders which meet one another over the whole 

 surface. At first living, when the 1. is mature they are dead and 

 full of air, their walls infiltrated with quantities of silica. A pro- 

 tection against evap. is thus afforded. In C. ncniorosa Endl. there is 

 veg. repr. by the formation of young plants in the infl. in place of fls. 



Crassulaceae (EP., BH.). Dicotyledons (Archichl. Resales -/"., BH.). 

 15 gen., 450 sp. cosmop., chiefly S. Afr., a very natural group. Most 

 are perenn. living in dry (esp. rocky) places and exhibit xero. chars., 

 fleshy 1. and stem, often tufted growth, close packing of 1.. waxy 

 surface, sunk stomata, &c. Veg. repr. frequent ; usu. by rhiz. or 

 offsets ; some form bulbils, &c. (e.g. Crassula), others form adv. 

 buds upon the 1. (e.g. Bryophyllum). Fls. usu. in cymes (cincinni), 

 5 or rarely unisex., actinom. with very reg. construction. Formula 

 K, C, A M + , Gn, where n represents any number from 3 to 30. 

 K persistent; C sometimes (e.g. Cotyledon) gamopet.; A frequently 

 obdipl. Insertion of parts usu. perig.. but recept. not deeply hollowed. 

 Cpls. frequently slightly united at the base; at the base of each 

 commonly a honey-secreting scale; ov. usu. <x> . Fr. usu. a group 

 of follicles with very small seeds. Endosp. none or very little. Fls. 

 mostly protandr. and chiefly visited by flies, &c., their honey being 



