A'PETALOUS EXOGENOUS PLANTS. 475 



stameJis commonly twice as many as the calyx-lobes, in 2 

 rows; aiithers 2-celled, opening lengtliAvise; 5^?//e simple ; 

 stigma capitate ; drupe with a single suspended anatropons 

 seed, containing little or no albumen ; cotyledons plano- 

 convex ; radicle superior. 



DIKCA, L. Leatherwood. 



Calyx bell-shaped, entire, or obscurely 4-toothed ; stamens 

 8, unequal, exserted ; style filiform ; albumen none. — A low 

 branching shruh, with alternate petioled oblong or obovate 

 at length smooth and deciduous leaves, and light-yellow 

 floivers from hairy buds, appearing before the leaves. 



D. PALUSTRis, L. Shady banks of streams. February 

 and March. — Shrub, 2°-3° high, with pale spreading jointed 

 branches ; leaves 2' long, silky when young ; floiuers three 

 in a cluster, on short pedicels ; drupe small, red. 



105. SANDALWOOD FAMILY. Order, Santalace^. 



Herbs, shrubs, or trees, with simple entire exstipulate 

 leaves; calyx tubular, 4-5-cleft, valvate in the bud, the 

 tube coherent with the ovary; stamens 4-5, opposite the 

 lobes, and inserted on the fleshy disk at their base ; anthers 

 introrse, opening lengthwise ; ovary 1-celled, with 2-4 ana- 

 tropons ovules suspended from the apex of the free central 

 placenta; style single ; fruit 1-seeded; embryo small, at the 

 apex of copious albumen; cotyledons cylindrical; radicle 

 superior. 



SYNOPSIS. 



* Flowers perfect. 

 Anthers connected with the calyx-lobes by a tuft of hairs. Leaves alternate. 



COMANDRA. 



** Flowers diacious ; shrubs. 



Calyx-limb double, eacJi A-lobed. Stamens 4. Anthers free. Albumen fleshy. Leaves 

 nearly opposite. Flowers tei^inal Buckleya {Torrey). 



