NEW SPECIES OF CICUTA. 237 



istics, the specimens have lain in my herbarium without fur- 

 ther notice. That I was at first willing to locate it under the 

 Rocky Mountain C. occidentalis was partly because, not know- 

 ing its fruit, I preferred not to accord it specific rank on 

 vegetative characters alone. Nevertheless the best, and often 

 the only characters for hundreds of species in a multitude of 

 genera, are the vegetative ; and the marks attributed to this 

 Calif ornian water hemlock at the first, are properly specific. 

 The difference between a glaucous plant and one without 

 bloom is a specific difference. The stems are not only taller 

 but stouter than in the very largest C. occidentalis . Finally 

 the consideration of its habitat, as of the Pacific slope, and 

 completely sundered from the environment of the plant of 

 Colorado and Wyoming — this argues for it specific rank ; and 

 the more conclusively since the discovery of C. grandifolia of 

 northern Arizona, a species which occupies, geographically, a 

 middle place between the habitat of C. occidentalis and the 

 Calif ornian species. 



CiCUTA SUBFALCATA. Roots 8 to 12, thickish and fleshy, 

 3 or 4 inches long, terete or slenderly fusiform, whorled around 

 the basal part of the strictly erect and closely partitioned sub- 

 terranean section of the stem, this hardly an inch high ; stem 

 proper only 2 or 3 feet high and slender, upright, not much 

 branched, bearing at summit about 3 smallish umbels : leaves 

 ternate, or some only bipinnate, the leaflets large for the plant, 

 3 or 4 inches long, narrowly lanceolate, subfalcate, closely 

 and saliently serrate-toothed, of a vivid green on both faces, 

 without trace of bloom and glabrous ; flowers small, white ; 

 fruit unknown. 



From the Gallatin National Forest in southern Montana, 

 where it is reported as growing in wet places, at an altitude 

 of 5000 feet. The specimens were gathered by some one in 

 the forestry service there, 29 August, 1911. 



CiCUTA DakoTica. Basal and underground parts not seen, 

 but plant evidently tall and robust, freely and widely branched 



