64 



PLANT^ l^RIGHTIAN^. 



T. 



■J 



legume is sharp-pointed. The leaflets are ciliolate, otherwise glabrous. The very 

 rigid and thick pod is like that of D. velutinus (which is in Wrighfs collection of 

 1851 froni the same region), of which it is most likely only a smooth variety. 



170, 171. "Leuc5:na retusa (sp. nov.): subglabra; pinnis 2-5-jugis; foliolis 

 6 - 8-jugis oblique obovatis vel late oblongis obtusis retusisve membranaceis veno- 

 sis ; pcdunculis capitulo longioribus ; legumine subcoriaceo, marginibus incrassatis. 



Gemmae et folia novella pube tenui flavescunt; ramuli et folia adulta glabra sunt. 

 StipulcE membranacea), pubcrulae, basi obliquae et latse, in acumen subulatum 2-3 

 lin. longum desinentes. Petioli tenues, communis 3-4 poll. longi, partiales vix 

 brcviorcs. Glandulte parvse, elevatee, fere stipitatae. Foliola plerseque 8- 10 lin. 

 longa, 4-6 lin. lata, nonnulla fere c 



tia, 3 - 5-nervia et reticulato-venosa. 



-6 Im. lata, nonnulla fere dimidio minora, basi valde obliqua, Isete-viren- 

 nervia et reticulato-venosa, Pedunculi floriferi pollicares, fructiferi bipoUi- 

 cares. Capitulum fere L. glaucae. Bractese stipitatse ; lamina peltata, ovata, subu- 

 lato-acuminata, supra villosa. Calyx l^ lin. longus, tubulosus, membranaceus, 

 apice breviter 5-dentatus. Petala anguste oblonga, calycem paulo superantia. 

 Staraina 10; antheris glabris. Legumen 6-9 poU. longum, 6 lin. latum, rigidius 

 et crassius marginatum quam in L. glauca. — The general appearance of the foli- 

 agc of this spccies is that of some Albizziae allied to A. Milleti." Benih. in litt, 

 Bottom of the Kio Nueces, June, in flower; and Pass of the Limpia, Aug., 

 fruit. Also in the collection of 1851. 



172. " AcAciA malacophylla (sp, nov. Vulgares Pennatae) : subscandens ? mo 



pubes 



sparsis raris ; pinnis 2 - 3-jugis obliquis obovatis 



oblongisve obtusis utrinque molliter pubescentibus ; capitulis globosis; leg 



lato-Iineari glabro. — Ramuli et folia pube molli undique canescentia. Petioli com'- 

 munes tenues, 2 - 3-pollicares ; partiales breviores. Foliola 3-6 lin. longa, obscure 

 venosa. Pedunculus fructifer saepius pollicaris. Legumen 4 poll. longum, 9 lin. 

 latum, falcatum, basi acutum et breviter stipitatum, planum, tenuiter subcoriaceumi 

 margine leviter incrassato." Benth in Utt. — Uplands of the Leona, Western Tex- 



^^^^i '"^ ^""^'^' ^^^"^ Cerralvo, Northern Mexico, May (in fruit), Wislizenus 



hose specimen is more aculeate, some of the rameal aculei jreminate. 



Notwithstandmg the specimens are in fruit only, Mr. Bentham remarks, that the 

 mams of the flower at the base of the pod leave no doubt as to the genus and af- 

 finities of the plant, although it is so very distinct a species in the group to which 



it belongs. 



173. "A. Weightii (sp. nov. Vulgares Nudiflor^): glabra, inermis; stipulis 

 minutis obsoletisve ; pinnis 1-2-jugis; foliolis 2 - 4-jugis oblique obovatis oblon- 

 gisve obtusis vel retusis ; spicis elongatis laxis ; floribus breviter pedicellatis • legu- 

 mme lato-linean obtuso plano membranaceo marginato glabro. - Ramuli albidi. 

 Fo la subfasciculati : petiolo communi 2 - 6 lin. longo, partialibus 4 - 6 lin. Glan- 

 dulae parvae convexa3. Stipella^ minimffi ad basin pinnarum. Foliola rimdula 2-3- 

 nervia ; ultima 3 - 5 lin. longa, 2 - 3 lin. lata, fere dimidiata ; inferiora s^pius mi- 

 nora. Pedunculi sesqui - bipollicares, jam infra medium interrupte floriferi. 



mmutae.^ Pedicelli calyce breviores. Flores cum staminibus fere 3 



Br 



absque staminibus Unea vix breviores, pentameri. Calyx semi-S.fidus, membrana 



