10l6 LXXXI. LOGAiSflACE^. 



Order LXXXI. LOGANIACE^. 



Flowers regular. Calyx free, with 4 or 5 teeth lobes or segments, very rarely 

 reduced to 2 or in a very few species 6 or 7. Corolla with 4, 5, or (in genera not 

 Australian) more than 5 lobes, valvate contorted or otherwise imbricate in the 

 bud. Stamens as many as corolla-lobes, alternate with them, inserted in the 

 tube or very rarely (in a genus not Australian) reduced to 1 ; anthers 2-celled, 

 the cells opening longitudinally. Ovary free, 2-celled or very rarely 3 to 5-celled 

 or imperfectly divided ; style single or separating into 2 at the base, with an 

 entire or 2-lobed stigmatic summit ; ovules 1 or more in each cell of the ovary 

 or to each placenta. Fruit a berry or capsule. Seeds albuminous. Embryo 

 straight, often oblique, with leafy or small cotyledons. — Trees shrubs climbers or 

 rarely herbs. Leaves opposite, usually connected by interpetiolar stipules or at 

 any rate by a raised line. 



A small Order, ranging over the tropical regions of the New as well as the Old World, with a 

 a few extratropical species in tbe southern hemisphere and in North America. The Order is 

 a somewhat heterogeneous group of genera, differing from Rubiacea in tbe free ovary and less 

 developed stipules, and closely connecting that Order with Apocynacea;, Gentianeie, and 

 Scrophularinea; . — Benth 



Tribe I. Eulog'aniese. — Ovary with many ovules in each cell. 



Herbs. Corolla-lobes valvate. Capsules 2-lobed or truncate. Flowers 4- 



merous, on simple solitary or clustered pedicels '...... . . 1. Mitbasacme. 



Herbs undershrubs or shrubs. Corolla-lobes imbricate, not contorted. Flowers 



usually 5-merous. Capsule septieidally dehiscent ... 2. Logania. 



Shrubs or trees. Corolla-lobes imbrioate-contorted . 



Fruit a capsule. Flowers small io axillary clusters or cymes 3. Geniostoma. 



Fruit a berry. Flowers usually large in terminal cymes or panicles ... 4. Faoe«:a. 

 Shrubs trees or woody climbers. Corolla-lobes valvate. Fruit a berry. Leaves 



3 or 5-nerved . . ........ 5. Stktohnos. 



1. MITRASACME, Labill. 

 (Capsule mitriform.) 



Calyx campanulate, 4-lobed or rarely 2-lobed. Corolla-tube short and broad 

 or elongated and cylindrical ; lobes 4, spreading, valvate and sometimes 

 reduplicate in the bud. Stamens 4, inserted in the tube ; anthers included 

 or rarely exserted. Ovary 2-celled, with several ovules in each cell ; style 

 usually simple at first but splitting at the base as the flowering advances ; 

 stigma capitate or minutely 2-lobed. Capsule globular or ovoid or compressed, 

 usually truncate or 2-lobed at the top, opening along the inner margins of the 

 lobes or carpels. Seeds small, ovoid or globular. — Herbs usually small or 

 slender. Leaves opposite, without stipules. Flowers small, usually white, often 

 yellowish at the throat, rarely all yellow, either solitary in the upper axils or the 

 upper pedicels crowded into a terminal cluster or irregular umbel without 

 bracteoles. 



The genus is chiefly Australian. 



Sect. I. OXitrag'yne. — Calyx i-lobed. 



Perennials (sometimes flowering the first year?) 



Stems leafy, much-branched, prostrate diffuse or tufted. Flowers 

 axillary or the upper ones in a sessile umbel. Calyx divided to the 

 middle. Corolla-lobes much longer than the tube. Anthers more or 



less exserted. Leaves linear-lanceolate or oblong-linear 1. Af. paliidosa. 



Stems leafy, erect or ascending. Corolla-lobes as long as the tube. 

 Flowers (small) in the upper axils or the uppermost in an almost 

 sessile umbel. 

 Nearly glabrous. Leaves small ovate or ovate-lanceolote ... 2. M. nldnoides. 



Pubescent or hirsute. Leaves narrow 1. M. paludosa. 



Flowers on long filiform pedicels, mostly forming loose umbels on 

 long terminal peduncles 3. M. polymorpha. 



