DIPSACACEJE. 



625 



close to the summit of the ovarian cell, and the micropyle is directed 

 upwards and inwards. The slender style which surmounts the ovary 

 traverses the tube formed by the anthers and rises considerably above 

 them; its stigmatiferous extremity is undivided and not enlarged. 

 The fruit is an achene the pericarp of which bears as many vertical 



CaJycera eryngioides. 



Fig. 431. Long. sect, of inflorescence (p. 



angles or short and obtuse wings as there are sepals, and is continuous 

 with the latter which are persistent but not accrescent. The seed 

 encloses under its coats a fleshy albumen surrounding a rather long 

 axile embryo, the cotyledons of which are tolerably thick and the 

 radicle, a little longer, is turned upwards. Boopis comprises glabrous 

 annual or perennial herbs which, about ten in number,^ inhabit the 

 temperate and especially the Andean regions of South America. The 

 leaves are alternate, without stipules ; the lower ordinarily rosetted, 

 entire, dentate or pinnatifid, sometimes slightly fleshy. The stem is 

 prolonged upwards and most frequently bears only smaller leaves or 

 bracts ; it may even be quite destitute. The flowers ^ are described 

 as in capitules, but they really form contracted cymes, that is 

 glomerules,^ each occupying the axil of one of the bracts borne by the 

 receptacle. The latter is convex, nearly hemispherical or more 



» Pa-:pp. et Endl. Nov. Gen. et Sp. i. 21, t. 33. J)idin. ii. 7, t. 44.— Walp. Antt. i. 988; v. 142 



— Remy, C. Gay Fl. Chil. iii. 247 {Gamocarpha) {Acarpha). 



248.— A. Gray, Pre. Amcr. Ac<d. v. 321.— - Small, white (or blue P). 



Phil. Lim/cea, xxviii. 706. — Wedd. Chlor. =» Often 2, 3-parous. 



