GELASTBACE^. 41 



fleshy, umbonate at apex ; pyrenes oo , thickly woody compressed, 

 obliquely superposed, l-spermous. Seeds glabrous, ascending and 

 descending ; albumen subcorneous ; cotyledons of axillary embryo 

 foliaceous suborbiculate ; radicle very small. Small glabrous trees ; 

 leaves alternate petiolate crenate or serrate; stipules minute 

 caducous;, flowers^ axillary few (2-5) spuriously umbellate; pedicels 

 minutely bracteolate. {Australia, Java?) 



24. Plenckia Eeiss.^ — Flowers nearly of Celastrus (or Elceoden- 

 dron), 5-merous ; germen immersed in disk 2-locular ; ovules in cells 

 2, collaterally ascending. Fruit dry, indehiscent samaroid; pericarp 

 subglobose, at apex marginally produced equally on both, sides to 

 straight linear- oblong membranous venose wing sligbtly dilated and 

 obtuse at apex. Seed in very elongate cell 1, suberect cylindrical 

 acute glabrous ; testa coriaceous ; albumen fleshy ; cotyledons of thin 

 axile (greenish) embryo linear elongate ; radicle sbort inferior, — 

 Glabrous trees; leaves alternate long and slenderly petiolate, generally 

 ovate,* serrate veined (poplar like); stipules minute, flowers^ in 



* compound axillary pedunculate cymes. [Brasil?) 



25. Tripterygium Hook.. F.'^ — Flowers of Celastrus, 5-merous; 

 antbers broadly oblong. Germen free, 3-gonal; style short, apex 

 stigmatose obtusely 3-lobed. Ovules in 3 incomplete cells in pairs 

 ascending. Fruit ^ dry, apiculate to style, 3-gonal. 3-alate ; wings 

 widely membranous. Seed in cell 1, solitary suberect ; embryo 

 small, at base of copious fleshy albumen ; cotyledons oblong ; radicle 

 inferior. — A glabrous (climbing ?) sbrub ; leaves alternate petiolate 

 ovately elongate serrate venosely striolate ; stipules ; flowers 

 (small) in short terminal axillary racemes. [Formosa.^) 



26. Mortonia A. Geat.^" — Flowers hermaphrodite; receptacle 

 very concave obconical or subcampanulate and lined with glandulous 

 disk. Sepals, 5 inserted at mouth of receptacle, imbricate at scarious 

 margin. Petals 5, alternate with sepals, sessile concave eroded, 



1 Yellow, purple Btriped. ■* One variety, very narrow. 



^■Speo. 2. M-iQ,. Fl. Ind.-Bat. i. p. ii. 592. * Small, white or yellow. 



— Hassk. in Eetzia,i. 150. — Hook. r. Trans. ^ Spec. 1,2. 'Evait, noBxly oiPraxinm. 



Linn. Soe. xxii. 133, t. 26.— Benth. Fl. Austral ' Gen. 368, n. 32. 



i, 403. — ^Walp. Sep. v. 404 ; Ann. iv. 431 ; •* Semi-uncial. 



vii. 585. ° Spec. 1. T. Wilfordii Hook. p. 



Mart.Fl.Bras.Celasir.3Q,t.5,W.—B.'B.. ^o PI. Wright, i. 36, t. 4; ii. 28.— B. H. 

 Gen. 368, n. 33. Gm. 368. n. 30. 



