38 PITTONIA. 
wise glabrous: involucres $ inch long, the outer bracts 
elongated deltoid, the inner oblong-lanceolate: flowers blue: 
achenes nearly black, compressed, sharply angled and with 
one sharp earinate nerve traversing the flattened face: fili- 
form beak about equalling the achene; pappus very fiue, 
bright-white. 
Common on open prairies in southwestern Minnesota ; 
collected by the writer at Prairie Junction, 7 July, 1898. 
With much the general likeness of a low and very leafy 
L. leucophxa, this plant drew my attention as something 
wholly distinct from that woodland species by its clear white 
pappus. I gathered specimens, not doubting that it was a 
new species, yet left them lying without examination or 
comparison, until, in January, in the first issue of Rhodora, 
there appeared an account of a new Lactuca Morssii, blue- 
flowered but with white pappus, from New England. Then 
I conceived that Dr. Robinson’s species must probably be 
the same as my unpublished one from Minnesota. But 
now, upon actually investigating my plant in the light of 
the description and figure of L. Morssii, I perceive that they 
can not be the same; the prairie species exhibiting an ex- 
tremely different lani much iem heads, and a one- 
nerved achene. 
| CAMPANULA WiLKINSIANA. Glabrous perennial, the up- 
right leafy few-flowered stems 3 to 6 inches high, from very 
slender rootstocks: leaves from obovate-cuneiform and toothed 
across the summit only, to oblong-lanceolate with serrate- 
toothed margins: flowers 1 to 3, on slender erect peduncles: 
calyx obpyramidal, the erect lanceolate entire teeth more 
than equalling the tubular portion: corolla deep blue-purple, 
funnelform, ereet, cleft nearly to the middle, the segments 
moderately spreading: style about equalling the corolla. 
Head of Squaw Creek, Mt. Shasta, California, at an alti- 
tude of about 8,000 feet, August and September, 1898, Miss 
Lewanna Wilkins. A beautifully distinct Campanula, with 
