PLANTS FROM NORTH DAKOTA 185 
shaped bracts readily distinguish the plant. The plant seems 
normally aquatic, the terrestrial is as yet unknown. 
The type is no. 420814 of the U. S. National Herbarium, 
Piper’s no. 4357 collected in Alaska on the Ankow River, Aug. 31, 
Sept. 1, 1904. 
Another specimen collected by M. W. Gorman (no. 1096) at 
Red Mountain, Alaska, July 11, 1899, may be referred here. It 
is no. 377159 of the U. S. National Herbarium. The flowering 
spike is, however immature and the plant is not as fleshy-stemmed 
as the other. 
Department of Botany 
University of Notre Dame. / 
NEW PLANTS FROM NORTH DAKOTA.—VIII. 
BY J. LUNELL. 
Toxicodendron desertorum sp. nov. 
Caudex horizontalis, aut subterraneus aut in solo reptans 
neque autem scandens neque radiculas aérias emittens. Rami 
eius aut erecti aut adscendentes, vel si de caudice inferiore oriuntur 
sursum versus curvati, 2-20 cm. longi, striati, lenticellati et 
vestigiis foliorum annorum antecedentium affixorum magis minusve 
tuberculati, progressu tempestivo expresso apice vel apicibus 
herbaceis qui 1-2 cm. longi sunt et folia racemosque emittunt et 
foliis autumnalibus exutis lignei et semper nudi fiunt. Interdum 
apex sterilis permanet et progressus tempestivus in singulo vel 
pluribus ramorum secundorum oritur. Folia pinnatim 3-foliolata, 
plerumque 1-3 de apice eodem crescentia, petiolis 3-10 cm. longis. 
Foliola 3-7 cm. longa, 2.5-5 cm. lata, late ovata, acuminata, 
crassa, nitentes, venis subtus pilosis, marginibus ciliatis, integris 
vel parte superiore dimidia undulatis vel sinuatim dentatis, 
petiolulo folioli extremitatis 8-15 mm. longo, lateralium 2’—5 mm. 
longis. Flores in paniculo axillari parvo brevi angusto, pedunculis 
brevibus. Fructus albidi, nitentes, globulares, 4-5 mm. diametro, 
post folia exuta manentes. 
Stem horizontal, either subterranean or creeping on the 
ground, but not climbing or sending out aerial rootlets. Its 
