ROBINSON. — DIAGNOSES OF TROPICAL AMERICAN PHANEROGAMS. CI 7 



part, not Gray. — San Luis Potosi, Mexico, 22° N. Lat., alt. 1830- 

 2400 m., Parry <b Palmer, no. 322 (type, in hb. Gray) ; in mountains, 

 San Miguelito, San Luis Potosi, August, 1876, Schaflner, no. 247. 



Var. anadenotricha, n. var., dense crispeque puberula ; foliis 

 quain ea formae typicae paulo majoribus 4-5 cm. longis 3.5-4 cm. 

 latis ; involucri squamis brevioribus 3-4 mm. longis crispe puberulis, 

 pilis omnino eglandulosis. — Southwestern Chihuahua, August to No- 

 vember, 1885, Dr. Edward Palmer, no. 257 (type, in hb. Gray). 



Stevia dictyophylla, n. sp., fruticosa ramosa ; caulibus teretibus 

 foliosis brunneis crispe tomentellis ; foliis oppositis ovatis vel ovati-ellip- 

 ticis acutiusculis integerrimis vel obsolete crenato-dentatis 3.5-6 cm. 

 longis 12-25 mm. latis basi cuneatis punctatis supra scabriusculis 

 subtus paulo pallidioribus crispe puberulis prominenter reticulato- 

 venosis supra basin subtrinerviis deinde pinnatim venosis, petiolo 

 3-7 mm. longo cuneato-alato ; corymbis densis multicapitulatis valde 

 convexis 12-14 cm. diametro ; bracteis ovatis vel ellipticis foliaceis ; 

 capitulis subsessilibus 5-floris ; involucri squamis lineari-oblongis acu- 

 tiusculis dorso rotundatis vel plus minusve carinatis griseo-tomentellis 



4 mm. longis ; corollis 3.8 mm. longis albidis valde exsertis, tubo 

 proprio 1.3 mm. longo extus granuloso, dentibus limbi ovatis paten tibus 

 minute hispidulis ; achaeniis gracillimis nigrescentibus acute 5-gonis 

 glabriusculis basi callosis apice cupulo brevissimo coronatis. — S. sub- 

 pubescens Benth. PI. Hartw. 19 (1839) ; Hemsl. Biol. Cent.-Am. Bot. ii. 

 90 (1881), in part; not Lag. — Guanajuato, Mexico, Hartweg, no. 37, 

 (type, in hb. Gray) ; hills near Guadalajara, Jalisco, Mexico, 11 

 December, 1889, C. G. Pringle, no. 2832 (hb. Gray). S. subpubescens 

 Lag., as ordinarily and with probable correctness interpreted, differs in 

 its more oblong leaves, which are decidedly more pubescent and much 

 less venose-reticulate, also in its smoother involucre, etc. 



Stevia revoluta, n. sp., fruticosa dichotomo-ramosa griseo-puberula ; 

 ramis teretibus nodosis a cortice griseo tectis ; ramulis teretibus 

 rectiusculis foliosis griseo-puberulis; foliis oppositis lanceolato-linearibus 

 integerrimis 5-7 cm. longis 4-6 mm. latis 1-nerviis pinnatim obscure 

 venosis supra viridibus puberulis subtus canescenti-tomentosis margine 

 valde revolutis ; corymbis multicapitulatis densiusculis griseo-puberulis 

 leviter convexis terminalibus ; bracteis linearibus ramos ramulosque 

 infiorescentiae subaequantibus ; involucri squamis 5 oblongis acutis 

 purpurascentibus, exterioribus dorso rotundatis nee carinatis crispe 

 puberulis, interioribus plus minusve carinatis ; flosculis 5 ; corollis 5 mm. 

 longis, tubo externe sparse granulifero saepius purpureo, dentibus limbi 



5 albis ovatis dorso hispidulis j achaeniis nigrescentibus gracilibus 

 subglabris lucidulis acute 5-gonis 4.3 mm. longis apice cupula brevi 



