CYATHEACEAE 195 



materials required by the parasite, which has no green tissue of its 

 own. The seeds of C. germinate later than those of the host plant ; 

 a very short anchorage root is formed and the stem nutates in search 

 of a host; as soon as it has clasped one the root dies away. Much 

 damage is often done by these plants: most of the Brit. sp. confine 

 themselves to particular host pi., but others attack a variety of pi. 

 For details see Kerner's Nat. Hist, of Plants, vol. i., and papers by 

 Peirce in Ann. of Bat. 1893 4. 



Cushion plants, with cushion-like growth reducing evap. 



Cusickia M. E. Jones. Umbelliferae (in. 6). i N.Am. 



Cusparia Humb. Rutaceae (i). 22 S. Am. C. febrifuga Humb. (C. 

 trifoliata Eng.) yields Angostura or Cusparia bark, sometimes used 

 in place of cinchona bark. 



Cuspidaria DC. Bignoniaceae (i). 5 Brazil, Bolivia. 



Cuspidate, with rigid point. 



Cussonia Thunb. Araliaceae (i). 25 S. and trop. Afr., Madag. 



Custard-apple, Anona sqtiaiosa L. , reticulata L. 



Cutandia Wilk. Gramineae (10). 6 Medit. 



Cutch, Acacia Catechu Willd., Rhizophora. 



Cuthbertia Small ( Tradescantia p-p-). Commelin. 2 N.Am. 



Cuticle, the thin detachable skin of a plant. 



Cutting grass (W.I.), Scleriaflagellum-nigrorum Berg. 



Cuttsia F. Muell. Saxifragaceae (v). i E.Austr. 



Cuviera DC. Rubiaceae (n. i). 10 trop. Afr. Several are ant- 

 inhabited with hollow swellings of the stem above the nodes. 



Cyamopsis DC. Leguminosae (in. 6). 3 trop. Afr., As. C. psoraloides 

 DC. is largely cultivated in India as fodder (guar). 



Cyanaeorchis Barb. Rodr. Orchidaceae (n. 7). i Brazil. 



Cyanandrium Stapf. Melastomaceae (i). 2 Borneo. 



Cyananthus Wall. Campanul. (i). 10 Mts. mid. and E. As. Ov. sup. 



Cyanastraceae (EP., Pontederiaceae p.p. BH. ). Monocots. (Farinosae). 

 Only genus Cyanastrum, q.v. 



Cyanastrum Oliv. Cyanastraceae. 5 trop. Afr. Herbs with tuber 

 or tuberous rhiz. , and racemes or panicles of $ reg. fls. P (3 + 3), 

 A (6), G (3), 3-loc. with 2 ov. in each. Fr. i-seeded. Perisperm. 



Cyanea Gaudich. Campanulaceae (ill). 28 Sandw. Is. 



Cyanella L. Amaryllidaceae un.). (Haemodor. BH.} 7 S. Afr. 



Cyaneus (Lat.), full blue. 



Cyanocarpus Bailey. Proteaceae (11). 2 Queensland. 



Cyanodaphne Blume. Lauraceae (n). 2 Malay Archipelago. 



Cyanostegia Turcz. Verbenaceae (3). 4 W. Austr. 



Cyanothyrsus Harms. (Daniella p. p.), Legumin. (n. 3). 3 trop. Afr. 



Cyanotis D. Don. Commelinaceae. 35 palaeotrop. 



Cyanus (Toutn.) L. = Centaurea L. (Comp.). 



Cyathanthus Engl. Moraceae (i). i Cameroons. 



CyatheaSm. Cyatheaceae. 240 tiop. and subtrop. Tree ferns, forming 

 a char, feature in the scenery of various regions. C. medullaris Sw. 

 (N. Z.) and C. dcalbata Sw. are well known. Their pulpy pith is 

 eaten by the natives. 



Cyatheaceae. Filicineae Leptosporangiatae (Homosporous). 9 gen. 

 with 360 sp. chiefly trop. and subtrop., mostly tree ferns with stout 





