1 62 COLO C ASIA 



coco, or scratch-coco), cult, in trop. for its rhiz., which when boiled 



loses its poisonous nature and forms valuable food. 

 Colocynth, Citrullus Colocynthis Schrad. 

 Colocynthis (Tourn.) L.= Citrullus Neck. (Cucurb.). 

 Cologania Kunth (Amphicarpaea EP.). Legum. (m. 10). 30 Am., As. 

 Colonist, weed of cult, land, rare elsewhere. 

 Colophony, a form of resin. 



Coloptera Coulter et Rose. Umbell. (in. 6). 3 N.W. U.S. 

 Colosantliera Pohl. Inc. sed. Nomen. 

 Colour, change in fi, cf. Change; of young 1., Amktrstia, Brownea, 



Cinnaniomum, Dryobalanops, Haeinatoxylon. 

 Colpias E. Mey. Scrophulariaceae (il. 3). i S. Afr. 

 Colpodium Trin. Gramineae (10). 12 N. temp. 

 Colpoon Berg. Santalaceae. 3 S. Afr. 

 Colpothrinax Griseb. et H. Wendl. Palm. (i. 2). i Cuba. 

 Colquhounia Wall. LaUatae (vi). 5 Indomal. 

 Colt's foot, Tussilago Farfara L. ; (W.I.) Piper umbellatum L. 

 Colubrina Rich, ex Brongn. Rhamnaceae. 20 trop., subtrop. 

 Columbaria J. et C. Presl = Scabiosa Tourn. (Dipsac.). 

 Columbia Pers. Tiliaceae. 15 trop. As. 

 Columbine, Aqiiilegia vulgaris L. 

 Columella, central axis of fr., Geranium, Thuja. 

 Columellia Ruiz et Pav. Columell. 3 N. Andes. Shrubs with evergr. 



opp. exstip. 1. Fls. in cymes, 5, nearly reg. K 5, C (5), A 2, short 



and thick with irreg. broad connective and i twisted pollen sac. 



No disc. G (2), imperfectly 2-loc. ; ov. GO, anatr. ; style short and 



thick with broad 2 4-lobed stigma. Caps., enclosed in K. Endosp. 

 Columelliaceae. Dicots. (Sympet. Tubiflorae ; Personates BH.}. 



Only genus Coluniellia (q.v.). [Van Tieghem, Ann. Sc. Nat. 8. 



xviii. 155.] 



Column, cf. Orchidaceae. 

 Columnea Plum, ex L. Gesneraceae (i). 75 trop. Am., several climbers 



and epiphytes. Anisophylly is frequent. 

 Columniferae (Warming). The J2th cohort of Choripetalae. 

 Coluria R. Br. Rosaceae (ill. 2). 4 Siberia, China. 

 Colutea (Tourn.) L. Leguminosae (in. 6). 12 S. Eur. to Himal. 



C. arborescens L. (bladder-senna) cult. Its 1. have similar properties 



to senna (Cassia) and are used to adulterate the latter. The pods are 



inflated and burst on being squeezed. 

 Coluteocarpus Boiss. Cruciferae (2). i W. As. Mts. 

 Colvillea Boj. ex Hook. Leguminosae (n. 7). i Madag. 

 Colza, Brassica Napus L. 

 Coma, a tuft of hairs. 



Comandra Nutt. Santalaceae. 4 Eur., N. Am. 

 Comanthosphace Sp. Moore. Labiatae (vi). 4 Japan. 

 Comarella Rydberg (Potentilla p.p.). Rosac. (m. 2). 2 N. Am. 

 Coniarobatia Greene (Rubus p.p.). Rosac. (in. 2). i N.W. Am. 

 Comarostaphylis Zucc. = Arctostaphylos Adans. p.p. (Eric.). 

 Comarum L. = Potentilla L. (Rosac.). 

 Combretaceae (EP., BH.). Dicots. (Archichl. Myrtiflorae; Myrtales 



BH-). i6gen., 450 sp. trop. and subtrop. Trees and shrubs with 



