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NOTES ON MIMOSE.E. 389 
spicis cylindricis folia superantibus.—Habitu hinc A. nigri- 
. canti, hinc A. pulchelle affinis. Inflorescentia spicata 1-14- 
pollicaris.—Swan River, Drummond. 
Series IV. Gumuirere. Stipule spinescentes. Plante 
ceterum. inermes. Folia bipinnata. Inflorescentia capitata 
v. spicata, simplex. Pedunculi subfasciculati axillares v. ad 
apices ramorum subracemosi.—Frutices v. arbores in regione 
calida utriusque orbis crescentes. Stipule subconnate sepe 
in eadem planta diverse, alice brevissime subulato-v. conico- 
Spinosee, recte rarissime recurve, alie maxime, eburnee 
V. fuscee subulatz, crasse v. inflato-corniformes, hæ sæpis- 
sime a vermibus punctatz et verosimiliter ob hanc causam 
difformes. Folia in gemmis axillaribus szepius fasciculata. 
Glandula petiolaris rarissime deest, adsunt etiam seepissime 
jugales, 1 v. plures, sub pinnarum foliolorumque paria su- 
prema. Pedunculi plerique axillares, rarius foliis floralibus 
abortientibus racemosi. Bractec 2-4, connatze, nunc ad basin 
pedunculi, nunc in medio pedunculo v. ad apicem sub floribus 
ipsis. Flores densissime capitati v. spicati. Bracteolz 
süpitatze, lamina parva ovata v. peltata, rarius minute incon- 
spicue. Ovarium sessile (an constanter?) glabrum.  Legu- 
men varium. 
This very natural series is chiefly characterized by the 
stipules, and thus in most cases easily recognised, although 
the infrastipulary aculei of the Catechu and allied species 
assume very much the appearance of spinescent stipules ; 
these aculei are, however, never connate. The pod is so 
variable in the Gummifere that one would be tempted to 
ound two or three distinct genera on some of the species, 
and the 4. Farnesiana has already been separated under the 
name of Vachellia, now generally adopted, but on a closer 
examination of all the materials before me, it has appeared 
to me impossible to form any definite or natural groups, 
at least in the present state of our acquaintance with the 
— Several species. Species with very different pods are often 
Scarcely to be distinguished when in flower, and if the fruit 
