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28 PROCEEDINGS OF THE AMERICAN ACADEMY. 
repens subglabra ; caule tenui flexuoso prostrato nodis radicante, inter- 
nodiis saepius perlongis (ad 1 dm.) glabris angulato-costatis; foliis 
oppositis, limbo late ovato 1.8-3.5 em. longo 1.2-2.7 cm. lato supra 
basin integram crenato-dentato supra viridi sparse hispidulo subtus 
paulo pallidiore glabro basi obtuso vel breviter acuminato apice obtuso, 
petiolo obcompresso (dorsoventraliter) limbum longitudine aequante ; 
capitulis parvis ca. 9-floris cymosis, cymis ca. 7-13-capituliferis termi- 
nalibus ; involucri campanulati squamis ca. 6 obovatis viridibus obtusis 
ciliatis 3 mm. longis ; corollae tubo proprio brevi glanduloso-puberulo, 
faucibus campanulatis quam tubo longioribus subglabris, limbi denti- 
bus 5 late ovatis obtusis ; achaeniis immaturis sursum hispidulis basi 
rectiusculis. — Colombia, near R. Flautas, R. Paez Valley, Tierra Aden- 
tro, Central Cordillera, alt. 2900 m., 26 January, 1906, H. Pittier, no. 
1208 (hb. U. 8. Nat. Mus. ; fragment inhb. Gray). This species stands 
nearest P. cailitricha Robinson, Proc. Am. Acad. xlii. 15 (1906), but 
differs in having smaller more coarsely and simply toothed leaves with 
much longer petioles. It is also a smoother plant and has fewer- 
flowered heads. 
Stevia alatipes Robinson, n. sp., herbacea perennis ca. 1 om. alta 
hirsuta ; radice fibrosa; foliis radicalibus ovatis vel obovatis crenato- 
serratis ca. 8 em. longis 4-5 cm. latis pinnatinerviis utrinque hirsutis 
haud vel vix punctatis apice rotundatis basi angustatis in petiolum — 
alatum decurrentibus; foliis caulinis oppositis 2~4-jugis oblanceo- 
latis vel fere spatulatis in petiolum alatum basi attenuatis ; infloresventia 
laxissime pauciramosa ; ramis nudiusculis, capitula pauca parva sacpe 
aggregata ferentibus ; bracteis 7 mm. longis lanceolatis sessilibus her- 
baceis ; pedicellis ad 1 em, longis filiformibus glanduloso-puberulis ; 
capitulis ca. 12 mm. longis 4-floris ; involucri squamis 5 viridibus lan- 
ceolato-linearibus acutis inaequalibus ca. 7 mm. longis ; corollis 7 mm. 
longis, tubo viridescenti puberulo, limbo albo ; achaeniis nigrescentibus 
3.2 mm. longis minute puberulis ; pappo e squamis 3 brevibus albis et 
aristis 3 albidis 5-6 mm. longis barbellatis composito. — Pine forests, 
Uruapan, Michoacan, Mexico, alt. 1680 m., 14 November, 1905, 0. @: 
Pringle, no. 10,124 (type, in hb. Gray). Near S. elatior HBK. but 
readily separable by its much, larger basal leaves with long-attenuate 
base, its aggregated heads, ete. 
St 
Stevia Lozanoi Robinson, n. sp., caule tereti purpareo pilis crispis 
griseis brevibus pubescenti supra laxe ramoso folioso ; Tamis divergenti- 
ascendentibus subsimplicibus gracilibus ca. 1 dm, longis foliosis 12 
_corymbos subdensos capitiformis terminantibus ; foliis inferioribus 
ignotis, superioribus linearibus sessilibus alternis integris 4-5 cm. longis 
3-7 mm. latis utrinque obscure viridibus punctatis 1-3-nerviis sparse 
