BOTANY. 13ä 



e, a seed-vessel ; f, cross-section of do. , g, the seed ; h, do. magnified ; : 

 section of do. 



Order 113. SxYLiDiACEiE, the Stylewort Family. Calyx adherent, 

 persistent, with two to six divisions, bilabiate, or regular. Corolla gamo- 

 petalous, falling ofi' late, limb usually irregular, five- to six-partite, segments 

 with a central vein ; a3stivation imbricated. Stamens two ; filaments 

 united with the style into a longitudinal column ; anthers didymous, rarely 

 simple, lying over the stigma; pollen simple, globose, or angular. Ovary 

 cohering with the calyx, bilocular, or by contraction of the dissepiment 

 unilocular, often surmounted by one gland in front, or by two opposite ones ; 

 ovules anatropal ; style one ; stigma entire or bifid. Fruit a bivalvular, 

 bilocular, or spuriously unilocular capsule, with septicidal dehiscence. 

 Seeds 00, small, erect ; embryo minute, inclosed in fleshy, somewhat oily 

 albumen. Non-lactescent herbs or undershi'ubs, with alternate, scattered, 

 or somewhat verticillate, entire, exstipulate leaves. They are well distin- 

 guished by their gynandrous structure. The column formed by th« union 

 of the filaments and style possesses, in the species of the genus Stylidium, 

 a peculiar irritability. The plants are principally natives of marshy places 

 in New Holland. Some are found at the southern point of South America. 

 There are five known genera, and 121 species. Examples: Stylidium, 

 Forstera. 



Order 114. GoooENiACEiE, the Goodenia Family. Calyx persistent, 

 usually equal, with three to five divisions, sometimes obsolete. Corolla 

 inserted into the calyx, monopetalous, more or less irregular, marcescent or 

 deciduous ; its tube split at the back, and sometimes separable into five 

 pieces, when the calyx only coheres with the base of the ovary ; its limb 

 five-partite, uni- or bilabiate, the thin part of the segments being at the 

 edges, which are folded inwards in aestivation. Stamens five, distinct, 

 inserted with, but free from, the corolla, and alternate with its segments: 

 anthers not articulated with the filaments, distinct or coherino-, bilocular, 

 with longitudinal dehiscence ; pollen grains either separate or united in 

 fours. Ovary more or less united to the calycine tube, one-, tw^o-, or four- 

 celled, sometimes with a gland at its base ; ovules definite or 00, attached 

 to a central, often free, placenta ; style one, simple, rarely divided ; stigma 

 fleshy, undivided or two-lobed, surrounded by a cup-like indusium. Fruit a 

 one-, two-, or four-celled capsule, or drupaceous or nut-like. Seeds definite 

 or indefinite, wdth a thickened, often hard testa ; embryo straight, in fleshy 

 albumen ; cotyledons leafy ; radicle inferior. Herbs, rarely shrubs, not 

 lactescent, wdth scattered, exstipulate, usually alternate leaves, and distinct, 

 never capitate flowers. They are found chiefly in Australia, and in the 

 South Sea Islands. The order is divided into two sub-orders. 



Suh-order 1. Goodeniece, with dehiscent capsular fruit, and numerous seeds. 



Sub-order 2. SccevolecB, with indehiscent, drupaceous, or nut-like fruit, and 

 seeds solitary, or two in each cell. There are fourteen known genera, 

 according to Lindley, and about 150 species. Examples : Goodenia, Velleia, 

 Leschenaultia, Sceevola, Dampiera. 



Order 115. BRUNONiACEiE, the Brunonia Family. Calyx persistent, five- 



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