ROBINSON. — NEW SPERMATOPHYTES, CHIEFLY FROM MEXICO. 23 



by DeCandolle and in its decidedly urceolate almost globose rather 

 than cylindric corolla ; also in the fact that the corolla-lobes are more 

 than half as long as the tube. S. x'at'vifoUa Planch., to judge from 

 Nelson's n. 1836, so identified at the Royal Gardens at Kew, has a 

 much more slender corolla. S. angulata Planch, is described by Hems- 

 ley, Biol. Cent. -Am. Bot. i. 185, as having flowers only one and one- 

 half lines long and branches angled, while in the present species the 

 branches are terete and even the branchlets are scarcely angled, the 

 flowers being furthermore fully 3 lines long. The genus, however, is 

 much in need of a thorough revision. 



Mimosa (§ Habbasia) buceragenia Robinson, n. sp., valde armata 

 3-5 m. alta ; ramulis viridibus albido-costatis puberulis in costis acu- 

 leatis ; aculeis sparsis recurvatis 4 mm. longis basi albidis compressis 

 4-5 mm. latis apice brunnescentibus induratis ; foliis 10-12 cm. longis 

 5-6 cm. latis ; petiolo et rhachibus et rhachillis breviter molliterque 

 pubescentibus ; petiolo 2 cm. longo supra cum gland ulo conspicuo ob- 

 longo sessili ca. 2 mm. longo instructo subtus cum aculeo saepius uno 

 armato ; rhachi aculeis 2-3 parvis instructa ; stipulis binis subulato- 

 filiformibus ca. 3 mm. longis erectis ; pinnis ca. 11-jugis; foliolis ca. 

 25-jugis linearibus utrinque viridibus glabris acutiusculis 4-5 mm. 

 longis ca. 0.8 mm. latis saepe leviter falcatis basi valde obliquis ; 

 floribus virescentibus spicatis ; spicis densis saepissime in axillis binis 

 pedunculatis ca. 4.5 cm. longis 8 mm. diametro ; calyce cupulato 

 brevissime 5-dentato ; petalis 5 anguste lanceolatis; staminibus 10; 

 ovario stipitato ; fructu ignoto. — Valley near Treinte Station, in the 

 vicinity of Cuernavaca, Morelos, Mexico, alt. 1220 m., 26 September, 

 1905, C. G. Pringle, no. 10,073. A species which, to judge from its in- 

 florescence, belongs in the series LeiJtostachyae, but well marked in this 

 series by its conspicuous petiolar glands. 



Pedilanthus spectabilis Robinson, n. sp., caulibus teretibus eras- 

 sis foliosis griseis minute granuloso-pulveruHs vix 1 m. altitudine ; 

 foliis ovato-oblongis brevissime crassiusculeque petiolatis 8-9 cm. 

 longis 4-6 cm. latis integris supra glabriusculis subtus breviter molli- 

 terque pubescentibus apice rotundatis saepissime retusis distincte 

 mucronulatis basi breviter cordatis ; inflorescentia terminali dichotoma 

 bracteosissima densiuscula ca. 1.6 dm. lata; bracteis late ovatis cor- 

 datis sessilibus oppositis integris 4-5 cm. longis et latis internodia 

 valde superantibus acute acuminatis caudato-attenuatis utrinque puber- 

 ulis rubro-purpureis margine tomentellis ; pedicellis griseo-tomentosis ; 

 involucro albido 18 mm. longo basi leviter invaginato, labio superiore 

 profunde bipartite, lobis linearibus acutiusculis 6-7 mm. longis quam 

 labio inferiore multo brevioribus margine tomentellis ; stipite ovarii 



