CALLUNA 107 



Callichlamys Miq. Bignoniaceae (i). 4 warm S. Am. 



Callichroa Fisch. et Mey. = Layia Hook, et Am. p.p. (Comp.). 



Callicoma Andr. Cunoniaceae. 2 E. Austr. 



Calligonum L. Polygonaceae (n. i). 20 N. Afr., W. As., S. Eur. 



Callilepis DC. Compositae (4). 3 S- Afr. 



Callionia Greene (Potentilla p.p.). Rosaceae (ill. 2). i N. Am. 



Calliopsis Reichb. = Coreopsis L. p.p. (Compos.). 



Callipeltis Siev. Rubiaceae (n. 11). 3 Egypt to Persia. 



Callliprora Lindl. = Brodiaea Sm. p.p. (Lili.). 



Callipsyche Herb. (Eitcrosia Ker-Gawl. EP.). Amaryllidaceae (i). 

 3 Ecuador, Peru. Cult. orn. fl. 



Callirrioe Nutt. (Maha p.p. EP.). Malvaceae (n). 8 N. Am. 



Callisia L. in Loefl. Commelinaceae. 4 trop. Am. 



Callista U. Don = Erica Tourn. p.p. (Eric.). 



Callistachys Vent. (Oxylobium Andr. BH.}. Legum. (in. 2). 27 Austr. 



Callistennna Boiss. (Scabiosa p.p. Bff.). Dipsaceae. i E. Medit. 



Callistemon R. Br. Myrtaceae (n. i). 12 Austr., often cult, (bottle- 

 brushes). The axis of the inn. grows on beyond the fl. and continues 

 to produce 1. (cf. Eucomis). Sta. conspicuous, as is often the case in 

 the dry climate of Austr. (cf. Acacia). Cult. orn. fig. shrubs. 



Callistephus Cass. Compositae (3). i Chi., Jap., C. hortensis Cass., 

 cult, under the name China aster. Bot. Mag., 1898, t. 7616. 



Callisteris Greene (Gilia, Cantua, &c. p.p.) Polem. 10 N. Am. 



Callisthene Mart. Vochysiaceae. TO S. Am. 



Callitriamna Herb. = Stenomesson Herb. p.p. (Amaryll.). 



Callitricriaceae (EP. ; Haloragidaceae p.p. BH.}. Dicots. (Archichl. 

 Geraniales). Only genus Callitriche (q.v.). As usu. in water plants 

 (cf. Ceratophyllaceae), the systematic position is doubtful. B.-H. 

 unite C. with Haloragidaceae, but the differences are considerable. 

 They have also been placed near Caryophyllaceae, Verbenaceae, 

 Boraginaceae, &c., but seem on the whole nearest to Euphorbiaceae, 

 where they are placed by Engler and by Warming (Tricoccae). 

 Callitriche L. Callitrichaceae. 25 (perhaps only vars. of i or 2), 

 cosmop. (exc. S. Afr.). Several forms (water star-wort) in Brit. 

 The submerged 1. are longer and narrower than the floating, and the 

 more so the deeper they are below the surface. Land forms also 

 occur. Fl. unisex., naked, commonly with 2 horn-like bracteoles, 

 protog. ; <? of i sta. ; ? of (2) cpls., transv. placed, 4-loc. by ' false ' 

 septum (cf. Labiatae), with 2 styles ; r ov. in each loc., pend. anatr. 

 with ventral raphe. Schizocarp. Fleshy endosp. 



Callitris Vent. (excl. Tetraclinis Mast., Widdringtonia Endl.). Coni- 

 ferae (Pinac. ; see C. for gen. char.). 18 Austr. (cypress pine). L. 

 and cone-scales in whorls. The cone ripens in i or 2 years. Wood 

 valuable. Yield a sandarach resin. 



Callixene Comm. ex Juss. = Luzuriaga Ruiz et Pav. (Lili.). 

 Callopsis Engl. Araceae (i). i Usambara. 

 Callostylis Blume. Orchidaceae In a, in), i Java. 

 Calluna Salisb. Ericaceae (iv. i). i, C .vidgaris Salisb. (heather or 

 ling), Eur., Greenland, and from Newfoundland to Massachusetts 

 (the only repres. of Ericoideae in Am.), covering large areas, together 

 with sp. of Erica and Vaccinium. A low evergr. shrub, with linear 



