I 22 



CARYA 



Carya Nutt. Juglandaceae. losp. N. Am., the hickory trees, cultivated 

 for their wood, which is very tough and elastic, and for the edible 

 fruit (pecans, like walnuts). 



Caryocar Linn. Caryocaraceae. 10 sp. trop. Am. The wood is very 

 durable and is used in ship-building. The fruit is a large 4-seeded 

 drupe ; the seeds are the Souari- or Butter-nuts of commerce. 



Caryocaraceae (Rhizoboleae)(EP.; Temstroemiaceae p.p. BH.}. Dicots. 

 (Archichl. Parietales). i gen., 15 sp. trop. Am. Trees and shrubs 

 with ternate opp. or alt. 1. with deciduous slips. Fls. $ in racemes. 

 K (5 6), C (5 6), A oo , united into a ring or in 5 bundles. G 4- 

 or 8 2O-loc. with as many styles, i ov. in each loc. Usu. drupe 

 with oily mesocarp, and woody endocarp which splits into 4 meri- 

 carps ; sometimes a leathery schizocarp. Little or no endosp. Genera : 

 Anthodiscus, Caryocar. 



Caryodendron Karst. Euphorbiaceae (A. n. 2). 2 trop. S. Am. 



Caryophyllaceae (EP. ; BH. excl. Illecebraceae or Paronychiaceae, and 

 Scleranthaceae]. Dicots. (Archichl. Centrospermae). 60 gen., isoosp. 

 cosmop. (many Brit.), mostly herbs, a few undershrubs, with opp. 

 simple usu. entire 1., often stip. ; the stem often swollen at the nodes, 

 the branching dich. The infl. usu. term, the main axis and is typically 

 a dich. cyme, but both in the veg. region and in the infl., of the two 

 branches arising at any node, one (that in the axil of /3) tends to out- 

 grow the other and after two or three branchings the weaker one 

 often does not develope at all, so that a cincinnus arises. The whole 

 infi. is very char., and such an one is often called a caryophyllaceous 

 infl. 



Fls. 5 and reg., but often not isomerous. As a type, the formula 

 of Lychnis may serve : K (5), C 5, A 5 + 5, G (5), with free central 

 plac., uniloc. Ov. usu. ao , in double rows corresponding to the 



Floral diagrams of (i) Silene in_flata and (2) Paronychia sfi. (after Eichler), 

 showing the ordinary type of fl. in Silenoideae and the most reduced type of 

 Alsinoideae; a, |3 = bracteoles. 



cpls. , rarely few or i (Paronychieae), usu. campylotropous. In most 

 cases the fl. is obdiplost. as may be recognised by the cpls. (when 5) 

 being opp. the petals. Frequently, reduction of the number of parts 

 occurs, e.g. G (3) or (2) or rarely (4); A 4 + 4, or 5, 3, 2, or i, and 

 in other cases the C may abort (Sagina sp., Herniaria, &c.). The 

 ovary, sta., and corolla are sometimes borne on an androphore 



