1 
F. Pax: Einige neue Euphorbiaceen aus Amerika. 161 
169. Mertensia nutans subcalva Piper, |. c., p. 479. 
Leaves minutely strigose above; otherwise as in M. nutans. 
Specimens examined: Rattlesnake Mountains, J. S. Cotton, 328, 
April 29, 1901. 
170. Oreocarya spiculifera Piper, l. c., p. 481. 
Tufted from a stout woody caudex, the whole plant pallid; basal 
leaves numerous, erowded, spatulate-oblanceolate. acute, only the midnerve 
evident, densely pubescent on both sides with fine appressed hairs, 
scattered among these and on the margins tout hyaline bristles; blades 
1,5 to 2 cm long, exceeding the margined petioles; cauline leaves few, 
similar to the basal ones, but with shorter petioles; flowering ` stems 
erect, simple, 20 to 30 cm high, angled, pubescent like the leaves; in- 
florescence of 8 to 12 alternate, subequal, false racemes, floriferous to 
their bases, the bracts and calyx pubescent like the leaves, but the 
bristles more abundant; bracts linear-lanceolate, obtuse, shorter than the 
calyx; pedicels short, soft-hairy; calyx lobes lanceolate, in flower 5 to 
6 mm, in fruit 8 mm long; corolla white, salver-form, its tube 5 mm 
long, its limb 8 mm broad; appendages triangular-ovate, obtuse, short; 
nutlets pale brown, dull, ovate, obtuse, 3 mm long, each with a smooth, 
narrow margin, the back bluntly tuberculate, the ventral side rugose, 
the groove reaching nearly to the apex; gynobase longer than the nutlets. 
Type in the National Herbarium, collected at Ritzville, Adams County, 
by Sandberg & Leiberg (no. 164), June 6, 1893. 
XLVI. Einige neue Euphorbiaceen aus Amerika. 
Von F. Pax. 
(Originaldiagnosen.) 
1. Dalechampia Grüningiana Pax, nov. spec. 
Caules e caudice lignoso plures, 15—25 cm longi, adscendentes, 
breviter cinereo-velutini. Petiolus brevis, 5 mm longus, subvelutinus; 
limbus membranaceus, 5—7 cm longus, 21/,—3!/, em latus, aut ovatus, 
indivisus, aut profunde trilobus, basi cordatus, apice subacutus, glabratus, 
lantum secus nervos leviter pilosus, irregulariter serratus, basi 5-nervius; 
Stipulae integrae, lanceolatae, 5 mm longae, ciliatae, ceterum glabres- 
centes. Pedunculi 9!/, cm longi, suberecti, griseo-velutini. Involueri 
folia late ovata, triloba, dense serrulata, basi cordata, 2 cm longa, Di cm 
lata, secus nervos pilosula, ciliata; bracteae floris 9 triangulari-ovatae, 
àcuminatae, integrae, ciliatae. Sepala 2 5, pinnatifido-lacinulata, rhachi 
lineari, lacinulis angustis, brevibus; columna stylaris cylindrica, integra, 
apice vix incrassata; ovarium sericeum. 
. Brasilia: Rio Grande do Sul, Estancia Lourenço Gomez prope Neu- 
Württemberg (A. Bornmüller no. 181; 10. Oktober 1904). 
Pertorium novarum specierum. VIII. 11 
