'^2Q VIOLALES. ^ [HVPOGYNOUS EXOGENS. 



Alliance XXVI. VIOLALES.— Tre Violal Alliance. 



Diagnosis. — Hypogynous Exogens, toith jyionodichlamydeous flowers, parietal or sutural 

 p)lacent(B, and straight embryo toith little or no albumen. 



If we except Moringads, Tamai-isks and Houseleeks, which are doubtful members of this 

 Alliance, the present group seems quite natural ; and those Orders themselves appear to 

 find no better station, as ^\'ill be shown when speaking of then- respective affinities. The 

 parietal placentation is without example among Hypogynous AlUances, except in Cistals, 

 whose curved or spiral embryo seems to distmguish them perfectly. 



Natural Orders of Violals. 



Flowers scattered, apetalous or polyp>etalom. Petals and stamem 1 ^ jq Flacourtiace^ 



both hypogynous. Leaves dotless, or with round dots only. . j ' 

 Flowers in catkins, apetalous, scaly, polygamous. Stamens 1 1 1 1 LArisTEMACFyE 



unilateral j 



Flower's scattered, apetalous, tubular, hermaphrodite. Leaves') 



marJccd ivith both roimd and linear transparent dots. (Sta- >112. Samydaceje. 



mens perigynous) J 



Flowers polypetalous or apetalous, coronetted. Petals pengy- 



nous, imbricated. Stamens on the stalk of tlie ovary. Styles ^113. Passiflorace^. 



simple, terminal. Seeds arillate. Leaves stipulate . 

 Flowers 2^olypetalous, coronetted. Petals perigynous, imbricated. 



Stamens on the stalk of the ovary. Styles simple, dorsal. ^ IH.Malesherbiace^. 



Seeds vAthout aril. Leaves without stipules .... 

 Flowers polypetalous. Calyx many-leaved. Petals pengynous. 

 . Anthers l-celled. Fruit stipitate, consolidated, stZ/jwoie. p 15. Moringace^. 



Seeds ivithout albumen (Stamens perigynoiis) . . . , 

 Flowers, polypetalous. Calyx many-leaved. Petals hypogynous. 



Stamens all perfect; anthers crested, and tu/rned inwards. ^ 116, ViolacE/E. 



Fruit consolidated. Seeds albuminous 



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Floioers iwlypetalous. Calyx tubular, furro^ved. Petals hypo- \-,,- r^^ .„,„ 

 gynous, unguiculate | U. . J^rankemace^. 



Floivers ^polypetalous. Calyx many-leaved. Petals hypogynous. ] 



Styles distinct. Fruit consolidated. Seeds 00, basal, comose, > 1 1 8. Tamaricace^. 

 without albumen J 



Floioers liolypetalous. Calyx many-leaved. Petals hypogynous. ] 



Stamens partly sterile and petaloid ; anthers opposite the 1 1 1 q c 



petals, naked, turned outwards. Fruit consolidated. Seeds f &auvagesiace.e. 



albuminous J 



Floivers polypetalous or monopctalous. Calyx many-leaved. \.o(x f 



Petals hypogynous. Fruit follicular, apocarpon^s . . . . J " '-^-'^s^ulace.e. 



Floivers polypetalous. Petals perigynous, contorted. Styles \.~,-, m 

 forked. Leaves cxstipulate . | '-i- ai'Rnerace.e. 



