. The vegetable kingdom : or, The structure, classification, and uses of plants, illustrated upon the natural system. iscence various. Seeds indefinite, minute ;testa firmly adliering to the kernel ; embryocylindincal, in the axis of fleshy albumen ; radiclemuch longer than the cotyledons and next thehilum. This Natural Order contains some of the mostbeautiful plants of which we have any were formerly separated into two Orders by Jussieu,distinguished Ericae and Rhododendra by the dehiscence of tcapsule ; a character not now esteemed of ordinal imporiance, andconsequently abando
. The vegetable kingdom : or, The structure, classification, and uses of plants, illustrated upon the natural system. iscence various. Seeds indefinite, minute ;testa firmly adliering to the kernel ; embryocylindincal, in the axis of fleshy albumen ; radiclemuch longer than the cotyledons and next thehilum. This Natural Order contains some of the mostbeautiful plants of which we have any were formerly separated into two Orders by Jussieu,distinguished Ericae and Rhododendra by the dehiscence of tcapsule ; a character not now esteemed of ordinal imporiance, andconsequently abandoned. Heathworts differ from Bilberriesand Belhvorts in their superior ovary, from Epacrids in the 2-celled anthers, from Wintergreens and Fir-rapes in the stiiicture ^S- theu seeds and habit, and from all the Orders of which Figworts and Gentianworts Fig. CCCXV.—Rhododendron albiflorum ; 1. a calyx and pistil, with aU the stamens removed saveone; 2. an anther ; 3- a ripe capsule burst; 4. a vertical section of a CCCXVI.—Arctostaphylos pungens. 1. a stamen ; 2. a cross section of an 454 ERICACEAE. [Hypogynous Exogens. may be considered the representatives, in the stamens not growing upon the petals,and in the cells of the ovary agieeing in number with the lobes of the calyx andcorolla. The genus Sam-auja among Dilleniads, has very much the structme of aClethra. In Horsfields Plantce Javanicce, p, 86, mention is made of the peculiarnature of the stigma m these plants, which Mr. Bennett justly compares to the indusiumof Goodeniads. I have endeavoured to show that this rim is nothing more than thepoints of carpellary leaves separated from the stigma, wliich is itself a prolongation ofthe placenta. See Botanical Register, 1840, t. 9, and some observations on Babing-tonia in the same work. Heathworts are most abundant at the Cape of Good Hope, where immense tracts arecovered with them ; they are common in Europe and North and South America, bothwithin
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