172 NATURAL HISTORY OF PLANTS. 
sagittate ; racemes dense, terminal or sessile on nodes of old wood, 
solitary or geminate; bracts ovate or oblong; bractlets coloured, 
inclosing bud, finally spreading (Zropical Asia and Africa). See 
p. 94. 
27. Schotia Jaca.—Flowers of Humboldtia ; stamens 10, free or 
monadelphous close to base. Legume oblong or broadly linear, 
falcate or straight, plano-compressed coriaceous subindehiscent ; pla- 
cental suture sometimes marginate. Seeds orbiculate compressed, 
exarillate (Theodora) or with a cupuliform aril formed by expansion 
of funicle at hilum (Huschotia); embryo exalbuminous ; cotyledons 
flat, radicle very short.—Unarmed trees or shrubs; leaves paripin- 
nate; stipules small; flowers handsome, crowded in short branched 
racemes ; bracts and bractlets membranous very caducous (Southern 
and subtropical Africa). See p. 94. 
28. Palovea Ausi.—Flowers of Amherstia ; sepals 4, imbricated ; 
petals 3, posterior imbricated. Stamens 9 (stamen superposed to 
standard absent), free. Legume oblong, very oblique, planv-com- 
pressed coriaceous-ligneous ; placentary suture thickened. Seeds ovate 
compressed.—Small trees, unarmed; leaves 1-foliolate coriaceous ; 
stipules small; flowers in short spikes at extremities of twigs; 
bracts short persistent, bractlets lateral coloured, connate to 
form a 2-lobed involucel shorter than the calyx (Guiana). See 
p- 90. 
29. Elisabetha Scuoms.—Flowers of Palovea ; petals 5, subequal 
imbricated ; stamens 9, free or connate close to base; 3 fertile large, 
superposed to anterior sepals; 6 posterior, minute or antherless. 
“Legume elongated falcate plano-compressed coriaceous-woody 
2-valved ; placentary suture thickened. Seeds ovate compressed.” —Un- 
armed trees ; leaves paripinnate ; stipules caducous ; flowers in short or 
capitate racemes at extremities of branches ; bracts broad coloured ; 
bractlets coriaceous coloured, longer than sepals, connate into a 
sheath inclosing bud (Guiana). See p. 95. 
30. Heterostemon Drsr.—F lowers of Palovea ; petals 3 posterior 
broad, 2 anterior rudimentary ; stamens 9 (of Elizabetha) ; filaments 
connate to form a sheath cleft above. Legume stipitate elongated, 
