1904] BRIEFER ARTICLES 7% 
- Plant | Fine soil | Medium soil Coarse soil 
‘Potentilla anserina, ........... 20-23 8-10 6- 8 
(3 out of 4 dead) 
Potentilla argentea............ 20-23 4-5 3~ 6 
MAT ena StriCta is cnr mk 8-15 2- 5 2- 4 
Verbena hastata . hice 14-19 ach. iz 
Solidago serotina.............. 42-45 10-17 10-12 
Helianthus st SUS! 5 pie tates 18-23 BRT? LO-1t 
Helianthus divaricatus......... 22-28 14-19 1O-17 
Pom prateneig occ. i, (aoa. 15-20 ead dead © 
Pua eomapretaa ss, veka es 28-40 nearly dead dead 
While the above table ts strikingly significant in showing relative size, 
and therefore relative rate of growth, it does not express at all the equally 
prominent features of comparative size and numbers of leaves, the presence 
or absence of runners, the wealth or scarcity of flowers, and all the features 
which go to make one plant vigorous and the other barely existing. 
It will be realized at once that the experiment here described offers 
somewhat conclusive evidence in favor of the above-mentioned hypothesis 
of one of the present authors (Joc. cit.), as well as of that recently expressed 
by Whitney and Cameron: in regard to agricultural plants.. A fuller dis- 
cussion and analysis of the conditions here dealt with would be out of 
place in this announcement, the purpose of the latter being only to state 
the facts in regard to the experiment. Further work along these lines is 
in progress—BurtoN Epwarp LivinesTton and GERHARD H. JENSEN, 
The University of Chicago. 
A NEW GILIA. 
Gilia sapphirina, sp. nov. (HuGELIA).—Erect, paniculately branched 
from the base, the branches slender, sparsely leaved, the main stem and 
some of the principal branches inclined to be tortuous, viscid-glandular 
throughout, 30°" high or more: leaves (all but the uppermost) simple, 
subterete, tipped with a white bristle, often purplish, 1-5°™ long; upper- 
most leaves with two very short bristle-tipped divisions at base: flowers 
solitary or capitate in few-flowered clusters from most of the leaf axils, 
even those near the base of the stem, either sessile or on peduncles 1o-15™ 
long; involucral bracts broadly ovate and simple or 3-lobed, membranous 
on each side of the broad green rib, glandular and clothed with very few 
woolly hairs: calyx 8™™ long, the divisions one-third the entire length, 
the central green rib 0.75™™ wide, slightly narrower than the membranous 
3 WuITNEY, M., and Cameron, F. K., The chemistry of the soil as related to crop 
production. U.S. Dept. of Agric., Bureau of Soils, Bull. 22:72. 1903. 
