F.Fedde: Vier neue Formen von Papaver nudicaule a. d. pazifischen Gebiete. 255. 
medium vel minus profunde 3-loba, lobo mediano late 3-crenata crenis 
obtusis et, praecipue mediana, cuspidato-mucronatis, lobis lateralibus 
inaequaliter 2—3-crenatis: flores omnino ignoti: capitula fructifera plus 
minus distincte nutantia: achenia usque 6 mm longa, ellipsoidea, mani- 
festim compressa, costis 8 (interdum 10) inaequalibus acutis percursa, 
sulcis plerumque latis minimeque profundis. y 
An interesting species thus for known only from two localities, 
both of them in Carbon County, southern Wyoming. The best 
specimen is in U. S. Herb., sheet 432337, and is from Battle Creek, by 
Frank Tweedy, 15 Aug., 1901. The other representation is of the 
specimens in Herb. Univ. Wyoming, from Elk Mountain, L. N. Goodding, 
21 Aug., 1901. 
E All the specimens were labelled T. occidentale; but the species is 
easily very distinct by its deep green and glaucous foliage, and by its 
nodding heads of achenes that are both flattened, and for from fusiform. 
49. Thalictrum amphibolum Greene, nov. spec. 
Planta verosimiliter praealta; caulis glaber, leviter striatus: folia 
atrovirentia glabra, pagina inferiore pallidiora atque sparsim muriculato- 
granulata; foliola terminalia circumscriptione subquadrato-obovalia, circa 
4 cm longa, basi obtusa, apice leviter triloba, lobis latis acutiusculis, 
mediano lateralibus fere 3-plo majore; foliola lateralia oblique ovalia, 
saepissime 3-loba, interdum integra: inflorescentia terminalis, subcontracta: 
achenia sat magna, 7 mm longa, glabra, elliptica, leviter compressa, 
profunde 10-sulcata; stylo recto filiformi deciduo. 
The fertile plant, in mature fruit, answering to the above description, 
was collected somewhere in Texas, presumably in the western part and 
more than half a century ago by Charles Wright. The type is in the 
herbarium of Mr. John Donnell Smith of Baltimore. It is mounted in two 
pieces; also on the same sheet, and purporting to have been gathered 
at the same time and place, as a larger and better specimen of a 
staminate plant in flower. That this was in flower at the time when 
the other was in ripe seed would of itself argue that they are not of the 
same species; but the foliage of this staminate plant is larger, and of a 
different cut. 
T. amphilobum may or may not prove akin to T' occidentale. 
LXVI. Friedrich Fedde, Vier neue Formen von 
Papaver nudicaule aus dem pazifischen Gebiete. 
(Originaldiagnosen.) 
1. Papaver nudicawe L. subsp. radicatum (Rottböll) Fedde var. «. colum- 
bianum Fedde nov. var. 
P. columbianum Fedde in sched. U. S. Nat. Herb. 
Herba humilis indumento cinereo-fulvo instructa. Folia valde reducta 
pinnatifissa, lobis plerumque non iterum fissis, lanceolatis. Pedunculi 
