94 NOTES ON MIMOSEZ. 
This beautiful genus is peculiar to the American continent. 
It has as it were the corolla of an Albizzia, the stamens of 
an Inga, and a pod different from that of any other genus. 
All the species (except C. scutellata C. filipes, C. tubulosa, 
and sometimes C. obovata) may be distinguished at once, even 
without the pod, from Albizzia, by the absence of glands on 
the leaf-stalks, from almost all Pithecolobia, by the size of 
the flower heads, and by the stipules ; and the remarkable 
manner in which the valves of the pod roll back, leave no 
doubt as to the genus in any case where that organ can be 
observed. The old species have been usually referred to 
Inga, when seen in flowers only, and to Acacia when found 
in fruit. 
§ 1. Macrophylle. Pinne et foliola pauci-(1-4-)juga. Foliola 
ultima ultrapollicaria (usque ad 8 poll. longa), basi valde 
obliqua, inferiora presertim interiora multo minora. Flores 
sessiles. Calyx obtuse et (nisi in C. amazonica) breviter 
5-dentatus. 
1. C. amazonica (sp. n.), glabra, stipulis falcato-ovatis 
acutis membranaceis, pinnis unijugis, foliolis unijugis maximis 
falcato-ovatis obtuse acuminatis 2-3-nerviis, pedunculis fasci- 
culatis remote racemosis, racemis subpaniculatis, calyce glan- 
duloso-ciliato semi-5-fido corolla turbinato-campanulata triplo 
breviore.—Seandens videtur. Stipule subsemipollicares. 
Foliola 5-7 poll. longa. Panicule rami divaricati. Capitula 
magnitudine C. Portoricensis, Legumen junius planum 
margine crasso, maturum non vidi.—On the Amazon river, 
Poppig, n. 2070. 
2. C. trinervia (sp. n.), glabra, stipulis ..., pinnis unijugis, 
foliolis unijugis amplis v. tertio minore sesquijugis falcato- 
ovatis obtuse acuminatis nitidis subtus elevato-2-3-nerviis, 
peduneulis fasciculatis, calyce breviter dentato corolla tenui 
infundibuliformi-tubulosa pluries breviore.— Rami verrucosi, 
ramulis floriferis abbreviatis stipularum vestigiis obtectis. 
Petioli leves.  Foliola 3-4-pollicaria, foliolo tertio vix polli- 
cari v. deficiente. Calyx ilin. longus. Corolla 33 lin., tubo 
