300 BOTANICAL GAZETTE. [ November, 
inch or less long, monocephalous: heads homogamous, 
about 20-flowered, subglobose, 5 lines high; exterior bracts 
of involucre foliaceous, scabrid, ovate, minute; interior ones 
smooth, oblong, obtuse, exceeded by disk; bracts of conic 
receptacle conduplicate, laciniate, rostrate: palets of pappus 
20-23, linear-tapering, nearly naked, subequalling corolla; 
achenia pubescent.—Nearest, especially in foliage, to the 
Columbian C. glomerata Klatt., Bot. Jahrb. viz, 45. Rocky 
mountain sides near Coban, alt. 4,300 feet, Aug., 1887. (Ex 
Pas Cit. 1353-) 
PrtcaIrNIA TUERCKHEIMII. Bot. Gazette, xim, 190. Explanation of 
rag XXIV: Fig. 1. Plant, nat. size. Fig. 2. Vertical section of flowers 
nat, size. 
Baltimore, Ma. 
BRIEFER ARTICLES. 
Enothera albicaulis.—The order Onagraces contains many interest- 
ing and beautiful species and this species is not the least deserving of no- 
tice. The flowers are large, white at first, later turning to a delicate rose- 
color, and very conspicuous. One evening during July I was walking 
with a gentleman from the barn to the house. We passed along the edge 
of a kitchen gaiden, and when near the house I called his attention to 
a large patch of (Enothera albicaulis which had never known the hoe, 
He admired the flowers, remarking that they were worth cultivating 
for ornament. We had not gone ten yards beyond them when a mos 
offensive, sickening fcetid odor assailed our nostrils. At first we 
could not account for it, because we knew of no carrion in the vicinity, 
At last I concluded it arose from a stink-horn of some kind, and 
the direction of the flowers. Standing still a few moments I felt three 
more warm pufis. and each time was nearly overpowered by the accom- 
panying smell. Subsequently I had an opportunity of observing the 
plant a little more closely. I found the puffs were stronger and more 
frequent on mild, still evenings; that they were then emitted, several in 
quick succession, at intervals ranging from twenty to thirty minutes. I 
never watched the plants all night, but have watched from eight in the 
evening till nearly two in the morning, and found that the puffs were 
stronger, more frequent and more regular between 9 and 12 P. M. than 
before or after. The flowers are influenced in opening and closing more 
by temperature than by the degree of light. When the morning is not 
too warm, that is to say not over 65° or 70° F., the flowers commonly re- 
