L.VXXIV. LOGAXIACE.«. 181 



Order LXXXIV. LOGANIACE^. 



Trees, shrubs, or herbs. Leaves opposite (rarely ternate), entire ; 

 stipules present or I'educed to a transverse line. Flowers usually 

 regular, hermaphrodite, generally in 2-3-chotomous cymes, various in 

 size and color. Calyx infei-ior ; tube short ; lobes usually 4-5. Corolla 

 gamopetalous, 4-5-lobed or -partite ; lobes imbricate or valvate. Stamens 

 4-5 inserted on the corolla-tube, alternate with its lobes ; anthers 

 2-celled. Ovary free, usually 2-eelleJ ; ovules 1-many in each cell; 

 styles 1 or 2. Fruit capsular or indehiscent, 1-many-seeded. Seeds 

 various, albuminous ; embryo usually straight ; cotyledons broad or 

 narrow; radicle usually interior. — Distrib. Chiefly tropical and sub- 

 tropical ; genera 30 ; species 4U0. 



Herbs. 



Cymes 2-3-chotomous ; corolla 5-lubed 1. Miteeola. 



Pedicels solitary oi- clustered ; corolla 4-lobed 2. Mitrasacme. 



Shrubs or trees. 



Fruit capsular 3. Buddleia. 



Fruit indehiscent. 



Corolla-lobes contorted 4. Fagr^ A. 



Corolla-lobes Talvate 5. Stryciinos. 



1. MITREOLA, Linn. 



Herbs. Leaves opposite, membranous ; stipules small or reduced to 

 a transverse line. Flowers in terminal or axillary 2-3-chotomous cj'mes, 

 small, sometimes unilateral on the ultimate cyme-branches. Calyx 

 5-partite ; segments lanceolate. Corolla urceolate ; lobes 5, short, 

 valvate. Stamens 5, included in the corolla-tube; filaments short; 

 anthers ovate, cordate at the base, with parallel cells. Ovary 2-celled; 

 ovules many in each cell, attached to a peltate placenta ; styles 2, short, 

 connate under a small capitate hairy stigma, free and divergent after 

 flowering. Capsule broad, obovoid, compressed contrary to the septum ; 

 carpels at first separating and then dehiscing along the inner face. 

 Seeds small, numerous, subglobose or compressed ; albumen fleshy ; 

 embryo linear ; cotyledons small ; radicle terete. — Distrib. Species 4, 

 of which 2 are American and 2 Asiatic. 



1. Mitreola oldenlandioides. Wall. Cat. (1828) 4350. An 

 annual herb 6-18 in. high. Leaves membranous, lg-3 by f- 1| in., 

 oblong, acute or acuminate, glabrous or nearly so, base acute running 

 down into the petiole ; main nerves 8-10 pairs with slender reticulate 

 veins between ; petioles 5 in. long. Flowers in axillary and terminal 

 dichotomous cymes, secuud along the branches ; pedicels -^\ in. long ; 

 bracts lanceolate-subulate, -^^ in. long. Calyx yL in. long, glabrous, 

 divided rather move than |-way down ; segments tt-^ in. long, subacute. 

 Corolla y^ in. long ; lobes 5, about j the length of the corolla, acute. 

 Capsule -^-1 in. long (including the somewhat inturned horns), wedge- 

 shaped, veined. Seeds twice as long as broad, oblong, rounded at the 

 ends, obscurely trigonous, pale, smooth and shining. Fl. B. I. v. 4, 

 p. 79; Dalz. & Gibs. p. 155; Hook. Icon. t. 827; Woodr. in Journ. 



