206 Hems ley. — Chelonespermu m and Cassidispermum, 
convexo infra medium nudo, medio umbonato costato vel unispinoso, 
supra medium grosse indurato-muricato vel spinoso, nunc longitudi- 
naliter bilamellato, facie dorsali convexa testa castanea nitida marginata 
tecta, margine integra vel irregulariter dentata lobata aut spinosa; 
albumen nullum vel ad membranam redactum ; embryo circumscrip- 
tione varius, cotyledonibus hilo parallelis latissimis crassis carnosis 
plano-convexis. 
The floral characters, as far as I am able to give them, are 
drawn up entirely from C. majus , and may have to be modified 
when the flowers of the other species are known, or even the 
genus may fall. The two-celled ovary, with one ovule in each 
cell, associated with a four-lobed calyx, and the peculiar seed, 
are the points relied upon. As in Sideroxylon globosum , 
Lucuma mammosum , L . Rivicoa , and Northea seychellana , the 
hilum is very large, larger indeed than in any of the plants 
named. The seed is a large compressed dorsi-ventral body, 
the hilum covering the ventral portion, which is more or less 
furnished with vertical plates and spine-like protuberances, 
especially in the upper half, sometimes with a stout central 
spike-like production 9-12 lines long. The dorsal part is 
covered with a smooth, shining, brown or chestnut, exceed- 
ingly hard testa, having an extended margin a little over- 
lapping the opaque corrugated hilum-portion, the edge being 
sharp and entire or more or less irregularly spine-toothed or 
lobed. 
(1) Chelonespermum majus, Hemsl. 
Arbor usque ad 80 ped. alta (fide Comins), ramulis ultimis floriferis 
crassissimis rugosis. Folia ad apices ramulorum conferta, longe 
petiolata, coriacea, obovato-oblonga, vel interdum ovato-oblonga, cum 
petiolo 4-8 poll, longa, obtusa vel subacuta, basi ssepius leviter 
oblique rotundata, primum praecipue subtus secus costam ferrugineo- 
tomentosa, demum glabrescentia, petiolo tereti ferrugineo-tomentoso 
9-18 lineas longo. Pedicelli floriferi graciles, petiolos paullo excedentes, 
ut calyces ferrugineo-tomentosi. Calycis segmenta vix 3 lineas longa, 
late triangularia, subobtusa. Fruclus pyriformis vel obovoideus, 
circiter 3J poll, longus ; semen circiter 3 poll, longum, hilo medio 
