252 XXV. FRANKENIACE^. 



smaller, 2 anterior larger, posterior often largest, spurred or gibbous at the base. 

 PETALS liypogynous, or inserted on the top of the calyx-tube, 1, 3, or. rarely 5, 

 when one is protruded between the anterior sepals, clawed, blade obcordate, eestivation 

 convolute. STAMENS inserted with the petals, usually 1 fertile, the ,rest imperfect 

 (except Lightia and Trigonia) ; filaments usually thick, excrescent, subulate; anthers 

 oblong-linear or linear-cordate, connective thickened, cells sub-distant, including the 

 style. OVARY free, rarely adnate to the sepals, often oblique and inserted by a 

 broad base ; style simple, subulate, filiform, or gradually dilated upwards ; stigma 

 capitate, truncate or oblique, entire or obscurely lobed ; ovules twin, collateral, 

 or oo 2-seriate, usually inserted in the axis, ascending or pendulous, micropyle 

 superior, raphe ventral. FRUIT usually capsular (a winged samara in Erisma), 

 oblong, terete or trigonous, coriaceous, loculicidally or septicidally 3-valved ; valves 

 coriaceous after parting from the seed-bearing axis, endocarp often parting from the 

 epicarp. SEEDS 1, few or many, sometimes imbricate in 2 series, often winged; testa 

 membranous or coriaceous, often hairy or cottony ; albumen 0, fleshy in Trigonia. 

 EMBRYO straight ; cotyledons flat, wrinkled, or membranous and convolute ; radicle 

 short or long, superior. 



PRINCIPAL GENERA. 

 Callisthene. Qualia. Krisma. Vochysia. Trigonia. Lighiia. 



Vwhyriacnr were placed by De Candolle amongst Culycijlorff next Onaflrarietr, but by Lindley near 

 Fol\j<jale(R with more reason. Iiiyhtia presents various points of analogy with Chryxobakincff ; and Eriiuna 

 with Dipferocnrpeff-, in its fruit, convolute petals, often contorted or folded cotyledons, and resinous juice. 



The order is -wholly tropical American ; of its properties nothing is known. 



XXV. FRANKENIACEJ1, Saint-Hilaire. 



CALYX tubular, 4-5-/d. PETALS 4-5, hypogynous, equal, long-clawed. STAMENS 

 usually 6, hypogynous. OVARY free, with 3-4-2 parietal placentas. STYLE 3-4-2- 

 partite at the top. CAPSULE q/"3-4 valves, bearing at the base seeds with floury albumen. 

 EMBRYO straight, axile. 



STEM herbaceous or suffruticose. BRANCHES many, terete, jointed at the nodes. 

 LEAVES opposite, small, entire, subsessile or petioled, often fascicled when young, 

 exstipulate. FLOWERS 5 , regular, pink or violet, solitary in the forks of the 

 branches, sessile, or in a terminal dense leafy cyme. CALYX monosepalous, tubular, 

 persistent, 4-6-lobed, aestivation induplicate-valvate. PETALS 4-"6, inserted on the 

 receptacle, long-clawed, free, imbricate in testivation, claw with an adnate scale in 

 front, limb spreading. STAMENS usually 6, sometimes 4-5-oo , hypogynous, free, or 

 connate at the base into a very short ring ; filaments filiform or flattened ; anthers 

 extrorse, versatile, didymous or ovoid, cells parallel, opening longitudinally. OVARY 

 free, sessile, 3-4-gonous, 1-celled, with 3 or sometimes 4 parietal slender placeni as ; 

 style filiform, with as many branches as placentas, branches stigmatiferous inside at 

 the "top; ovules co, 2-seriate, semi-anatropous, micv<>p\]<> inferior, funiclr I-MIL:, 



