1 32 CE RATIO LA 



Ceratiola Michx. Empetraceae. i All. N. Am. 



Ceratiosicyos Nees. Achariaceae. i S. Afr. 



Ceratites Soland. ex Miers. Apocyn. (i. 3). i Rio de Janeiro. 



Ceratocarpus Buxh. ex L. Chenopod. (A), i Persia, Alghan. 



Ceratocaryum Nees (Willdenowia EP.). Restiaceae. 10 S. Afr. 



Ceratoceprialus Moench. = Ranunculus L. p.p. (Ranunc.). 



Ceratochaete Lunell (Zizania p.p.). Gramin. (6). i N. Am. 



CeratocMlus Blume. Orchidaceae (n. 20). 4 Indomal. 



Ceratochloa Beauv. = Bromus Dill. p.p. (Gram.). 



Ceratocnemum Coss. et Balansa (Rapistrum p.p. EP.). Cruciferae (2). 

 i Morocco. 



Ceratodiscus Batalin (Corallodiscus p.p. EP.). Gesn. (i). i Chi. 



Ceratogyne Turcz. Compositae (7). i W. temp. Austr. 



Ceratolacis Wedd. Podostemaceae. i Brazil. 



Ceratolobus Blume. Palmae (in. 2). 2 Malay Arch. 



Ceratominthe Briq. Labiatae (vi). 2 Andes. 



Ceratonia L. Leguininosae (n. 5). i Medit., C. Siliqiia L. (carob- 

 tree). The pods (Algaroba, St John's bread) are full of juicy pulp 

 containing sugar and gum, and are used for fodder. The seeds are 

 said to have been the original of the carats of jewellers. 



Ceratopetalum Smith Cunon. 2 E. Austr. Light timber. 



Ceratophyllaceae (EP., BH.}. Dicots. (Archichl. Ranales; Mono- 

 chlam. BH.). Only genus Ceratophyllum (q.v.). As usu. with water- 

 plants it is difficult to decide upon a position for the C. in the classi- 

 fication. The one free cpl. and several P leaves seem to place them 

 in Ranales, and they are distinguished from Nymphaeaceae by the 

 orthotr. ov. , whorled 1., &c. Eichler placed them in Urticinae". 



Ceratophylleae (BH. ) = preceding. 



Ceratophyllum L. Ceratophyllaceae. 3 cosmop. ; C. demersum L. and 

 C. submerstini L. Brit, (hornworts). Water-pi., rootless, with thin 

 stems and whorls of much-divided submerged 1. The pi. decays 

 behind as it grows in front, so that veg. repr. occurs by the setting 

 free of the branches. The old 1. are translucent and horny, whence 

 the name. Winter buds are not formed, the pi. merely sinking in 

 autumn and rising in spring. 



Fls. monoec., axillary, sessile, with sepaloid P. In the <? , P 

 about (12), hypog. ; A 12 16 on convex recept., with oval non- 

 cutinised pollen. In the ?, P (9 10), hypog.; G i, the midrib 

 anterior; ovule i, orthotr., pend. Achene crowned by the persistent 

 style, which in C. demersum is hooked. Endosp. Fl. water-pollin. ; 

 the anthers break off and float up through the water (each has a sort 

 of float at top of theca) ; the pollen is of the same specific gravity as 

 water (cf. Zostera) and drifts about till it reaches a stigma. 



Ceratopsis Lindl. = Epipogum S. G. Gmel. (.5//.) = Galera Blume. 



Ceratopteris Brongn. Parkeriaceae. 2 trop., subtrop. C. thalictroides 

 Brongn. is aquatic. Its fronds are ed. 



Ceratopyxis Hook. f. Rubiaceae (n. 3). i Cuba. 



Ceratosanthes Burin, ex. Adans. Cucurb. (2). 10 Braz. to W.I. 



Ceratosanthus Schur. = Delphinium Tourn. p. p. (Ranunc.). 



Ceratosepalum Oliv. Tiliaceae. i E. trop. Afr. 



Ceratostema Juss. ( Tkibaudia p. p. EP.). Eric. (in. 2). 25 S. Am. 



