284 botanical gazette. [ November, 



ternate-pinnate leaves, toothed (unusually broad) leaflets, 

 involucre and involucels of numerous and conspicuous bracts, 

 and white flowers. 



* T. Howellii. Stem rather stout, 3 to 3^ feet high ; leaves 

 few, termite then once or twice pinnate ; leaflets lanceolate to 

 ovate, strongly toothed or lobed ; umbels many-rayed, with 

 involucre of long narrowly oblanceolate bracts (becoming 

 reflexed), and involucels of prominent lanceolate scarious- 

 margined bractlets ; rays 1^ to 2\ in. long; pedicels 3 to 5 

 lines long ; fruit \\ to 2 lines long. — Cartim Howellii C. & R. 

 Rev. Umbell. 129. Atcenia Hozuellii Greene, Pittonia i. 274. 



Wet places, Grant's Pass, Oregon, July, 1887, in flower; 

 also 1888, in mature fruit (Howell 7 ioj. 



An abundance of line fruiting material collected by Mr. 

 Howell has enabled us to determine the affinities of this here- 

 tofore puzzling species. In our Revision of N. Am. Um- 

 bellifera* we hesitated to include this species under Carum 

 on account of its unusual leaves and bracts, but in the absence 

 of fruit we left the matter in doubt. Now that mature fruit 

 has been discovered, characters are found which plainly sep- 

 arate it generically from Carum. The prominent ribs, con- 

 taining large groups of strengthening cells and accessory 

 oil-tubes, are among the most noticeable features, while the 

 investment of the seed with an oil-secreting layer in which 

 are frequently developed small oil-tubes, and its becoming 

 loose in the pericarp, are perhaps no less so. When to such 

 characters as these there are added the broad toothed leaflets 

 and very prominent bracts of both involucre and involucels. 

 an unusually strong combination of characters is made upon 

 which to establish a genus. The name refers to the fact ot 

 oil-tubes being found "in the ribs. 



Cicuta HUU5IFKR ,\ L. has at last been collected with ma- 

 ture fruit. It comes from Mr. O. A. Farwell, Keweenaw 



Michigan. The fruit is quite small, a line long by 



John M 



half a line broad, and is broadly ribbed. 



Berula angustifoli a 

 coun, have been collected at several stations in British Co 

 lumbia. 



Crawjordsville 



