PENNELL: PLANTS OF SOUTHERN UNITED STATES 185 
middle. Follicles erect on reflexed fruiting pedicels, 10 cm. long, 
lanceolate, short-caudate, hirtellous-pubescent. Seeds obovoid, 
flat, 8 mm. long. Coma silvery, 35 mm. long. 
Type: dry soil, east of Carthage, Jasper County, Missouri, F. W. 
Pennell 5372, in the herbarium of the University of Pennsylvania. 
Wet to dry prairies, northern Illinois to eastern Kansas, and 
in ‘“‘swamps’’ in Michigan. Probably extends to Oklahoma, as 
Nuttall collected it on the ‘‘Red River.” This is the plant of the 
Mississippi Valley which has been merged with the Coastal Plain 
A. floridana (Lam.) A. S. Hitche., and the following numbers are 
characteristic, H. S. Reynolds 28, Agnes Chase 1439, J. R. Gardner 
563, B. F. Bush 244, A. S. Hitchcock 763. 
The key below contrasts these two species: 
Puberulence finely cinereous. Pedicels finely puberulent with in- 
curved hairs. Hoods two thirds to three fourths the length 
of the anthers. Seeds 9-10 mm. long, dark-brown. Leaves 
not crowded, narrowly to broadly linear, glabrate. Flowers 
7mm.long. Petals strongly purple externally toward apex, 
with a narrow white border. Vmnee one to six, ten to 
sule about 11 cm. long, narrowly lanceolate, long-caudate, 
y appressed-puberulent. 1. A. floridana. 
Puberulence more densely cinereous. Pedicels pubescent with 
spreading hairs. Hoods one half to two thirds the length of 
the anthers. Seeds 8 mm.long,cinnamon. Leaves crowded, 
br paras — — to _ conionang De a or 5 mm 
si 
ward apex, with a ieebhiie’ white bodies: ‘Umbels four 6 
cata twenty-five- to one hundred-flowered, on peduncles 
not over 3 cm. long. Capsule lanceolate, short-caudate, Lo 
cm. long, hirtellous-pubescent. 2. A. hirtella. 
EVOLVULUS SERICEUS Sw. 
Two forms were collected together on black calcareous soil, 
Edwards Plateau, northwest of New Braunfels, Comal County, 
Texas, September 14, 1913, Pennell 5440, 5442. No. 5440, with 
broader densely white-lanate leaves, bore blue corollas; No. 5442, 
with narrower leaves, strigose-lanate beneath, bore pale blue 
corollas. The latter is nearer the typical form of the West Indies. 
PHLOX FLORIDANA Benth. 
Dry sandy pine-land, east of Mississippi City, Harrison County, 
Mississippi, August 27, 1912, Pennell 4353. 
