. A dictionary of the flowering plants and ferns. Botany. LORENTZIA 395 sympodial, often dichasial, in Viscum, and the 1. evergr. and leathery. Infl. cymose, the fls. usu. in little groups of 3 (or 2, by abortion of the central fl.). When the fls. are stalked, the bracts of the lateral fls. are always united to their stalks, up to the point of origin of the fl. (see Viscum and Loranthus). Infl. sometimes in spikes, with the fls. on the internodes as well as on the nodes. The recept. is hollowed out, and the P springs from its margin. In the Loranthoideae there is below the P an outg
. A dictionary of the flowering plants and ferns. Botany. LORENTZIA 395 sympodial, often dichasial, in Viscum, and the 1. evergr. and leathery. Infl. cymose, the fls. usu. in little groups of 3 (or 2, by abortion of the central fl.). When the fls. are stalked, the bracts of the lateral fls. are always united to their stalks, up to the point of origin of the fl. (see Viscum and Loranthus). Infl. sometimes in spikes, with the fls. on the internodes as well as on the nodes. The recept. is hollowed out, and the P springs from its margin. In the Loranthoideae there is below the P an outgrowth of the axis in the form of a small fringe—the calycttlus. Some look upon it as a K, many as an outgrowth of the axis; and this is perhaps the safest view. P either sepaloid or petaloid. Fls. $ or unisexual. Sta. as many as, and (as in Proteaceae) united with, the P-leaves. The pollen is often developed in a great number of loculi, separate from one another, though often becoming continuous when mature. Ovary i-loc., sunk in, and united with, the receptacle, the ovules not differentiated from the placenta. Embryo-sacs > one, curiously lengthened (cf. Casuarina). Fr. a pseudo-berry or -drupe, the fleshy part really the receptacle. Round the seed is a layer of viscin, a very sticky substance. [For full details of the many interesting features of this fam., the infl., fl., pollen, development and structure of ovule and embryo-sac, fruit, seed, germination, haustoria, &c., see Engler in Nat. Pfl. and papers by Wiesner in Sitz. k. Akad. Wren, cm. 1894, and Keeble in Trans. Linn. Soc. v. 1896.] Classification and chief genera (after Engler): I. LORANTHOIDEAE (\v\t\\cz\yc\i\\\s): Stiulhanthus, Lor- anthus, Psittacanthus. II. VISCOIDEAE (without calyc.): Arceuthobium, Diagram of Loranthus (after Eichler). c, calyculus. Loranthus L. Loranthaceae (i). 300 |* trop. and subtrop. Semi- parasites. $ or unisexual fls. in small cymes, the bracts adnate to the peduncles.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
