Macrolobium.| XLVII. § CESALPINIEE (OLIVER). 297 
16. MACROLOBIUM, Schreb.; Benth. et Hook, f. 
Gen. Plant. i. 579. 
Buds enclosed between valvate bracteoles until flowering. Calyx- 
tube very short, turbinate ; calyx-limb 4-partite, segments subequal in 
length, posterior usually broader bifid or emarginate, or 5-partite lobes 
subequal (in IM. demonstrans). Posterior petal unguiculate or subsessile, 
lamina 2-lobed; lateral and anterior petals much smaller or squami- 
form, or 2 lateral nearly equalling and similar to the posterior. Perfect 
stamens 3, exserted; filaments free, elongate; anthers oblong or ellip- 
tical, dehiscing longitudinally, versatile ; staminodia variously abortive 
or 0 or occasionally subulate and antheriferous. Ovary shortly stipi- 
tate or subsessile ; style usually filiform, stigma terminal. Ovules 3-10. 
Legume oblong or broadly oblong oblique, flattened, coriaceous, ventral 
suture sometimes thickened and grooved ; few—several-seeded. Seeds 
large compressed roundish or quadrate, éxalbuminous; cotyledons 
usually fleshy; radicle short, straight, included.—Unarmed trees or 
shrubs. Leaves usually 1—6-jugate; stipules foliaceous or incon- 
spicuous. Flowers rather small in simple or compound, solitary or 
fascicled, contracted or elongate, terminal or axillary racemes. Bracts 
minute, deciduous. Bracteoles geminate, valvate, enclosing the bud, 
spreading during flowering. 
A considerable genus as circumscribed by Mr. Bentham, chiefly ‘Tropical American. 
The following species are endemic. Perhaps Berlinia ought to be united with Macro- 
lobiwm, but as there remains usually a difference in the number of perfect stamens, so 
far as species hitherto examined are concerned, the genera may remain until further 
discoveries enable us to judge how to treat them. 
Stipules inconspicuous or 0 at flowering. Calyx-lobes 4, posterior 
shortly bifid. 
Posterior petal distinctly clawed; 4 smaller petals subequal 
inter se. Racemes 1-6 in., often fascicled . . . . . 
Posterior and 2 lateral petals subsimilar, obcordate, subsessile, 
2 anterior squamiform. Racemes elongate. . . . . . 2. M. Heudelotii. 
Stipules of leaves undescribed, of bracts subtending branches of 
panicle 4 in. Calyx-lobes 5, subequal. Posterior petal dis- 
tinctly clawed. Panicles §. ft... . «=. +... + ».» &. 2 domonetewes. 
Stipules present at flowering, sheathing, 2 in. long. Flowers in 
dense fascicled compound racemes or panicles, 2-3 in. long, 
feb dd WO ik eas eae SE ee 
1. M. Palisoti. 
1. M. Palisoti, Benth. in Linn. Trans. xxv. 308. ‘Tree attaining 
30 or 40ft., extremities glabrous or minutely puberulous. Leaves 
aa Teg Maree one leaflet of the terminal pair occasionally wanting, 
rachis 24-6 in., subterete; leaflets rather coriaceous, 3—8 (9) in. long, 
13-8 (4) in. broad, oblong-elliptical or obovate-elliptical shortly acu- 
minate or apiculate, rounded or broadly cuneate at base, glabrous and 
shining above, closely and obscurely silvery-sericeous with prominent 
midrib beneath, lateral nervures rather prominent, subdistant, curving 
forward; petiolules articulated to rachis, 2—4 lines long; stipules not 
observed. Flowers usually in short, fascicled, or sometimes solitary, 
