180 PITTONIA. 
bracts oblong-lanceolate, hispid, pustulate: rays 10 to 14, 
oblong, short, less than 1 inch long, glossy and purplish- 
black below, yellow above: disk hemispherical, dark purple, 
style tips: achenes and chaff as in R. hirta. 
Found by Nuttall in Arkansas and near the Red River. 
~ R. rLExUOsA. Probably an annual or biennial, with a 
stoutish, flexuous stem about 18 inches high, divergently 
branched from near the base, hispidulous: basal leaves 
oval, strigose-hispidulous, obtuse, on margined petioles; the 
lower cauline oval with a short, spatulate base, remotely 
crenate-toothed ; the upper lance-ovate, sessile; all obtuse, 
3-nerved and strigose-hispidulous: involucral bracts ovate- 
lanceolate, $ inch long or more: rays about 8, linear-ob- 
long, little longer than the involucral bracts: disk short- 
cylindraceous. 
Specimen collected by A. A. Heller(No. 1751) near Greg- 
ory, San Patricio County, Texas; deposited in the United 
States Herbarium and labelled R. bicolor. The divergently 
branched, flexuous stem and the very broad leaves are 
characters which do not belong to R. bicolor; which is of 
simple habit and has much narrower leaves. Then, too, 
the pubescence of Nuttall’s plant is longer than in this one 
and the short-cylindraceous disk of R. fleruosa makes it 
altogether unique in this group of Rudbeckias. 
A DECADE oF NEW GENTIANACE. 
Among Rocky Mountain representatives of the genus 
GENTIANA, the following species hitherto unrecognized 
require definition: 
G. BRACTEOSA. Akin to G. Parryi, more erect, more 
