114 PLANT LIFE OF ALABAMA. 
The following are of wide continental range east of the Rocky 
Mountains, extending to the Carolinian area, the first being the most 
abundant species of the dry pine barrens: 
Sporobolus longifolius.} 
Sporobolus neglectus, | 
Sporobolus vaginaeflorus.! 
Andropogon scoparius. | 
Chrysopogon avenaceus.! 
Sporobolus junceus. 
The following representatives of the Cyperaceae are found among 
the xerophile plant associations, mostly of the Louisianian area: 
Scleria elliottii. 
Stenophyllus ciliatifolius. 
Carex festucacea.! 
Carex muhlenbergii.' 
Juncus torreyi.} 
Cyperus martindalit. 
Cyperus retrofractus.? 
Rynchospora grayii. 
Rynchospora intermedia. 
Scleria ciliata, 
The xerophile species of other families associated with these ¢luma- 
ceous plants are for the largest part at home in the Louisianian area. 
Fully two-thirds of the numerous Leguminosae and Compositae occur- 
ring in this region are confined to that area. Omitting the common 
species of wide distribution, the following, named in the succession of 
their flowering, give character to the xerophile herbaceous associations 
of the rolling pine uplands. 
As the first harbingers of spring, appear 
before and in the beginning of February: 
Houstonia rotundifolia. 
Epigaea repens." 
These are succeeded by: 
Helianthemum carolinianum. 
Astragalus villosus. 
Lupinus diffusus. 
Tris verna. 
Chrysogonum virginianum.? 
Oxvalis recurva, 
Oxalis filipes.? 
Ascyrum pumilum, 
Phlox pilosa detonsa. 
Phlox amoena.* 
Lupinus nuttallii. 
Lamodorum parviflorum (Calopogon 
parviflorus Lindl.) 
Chrosperma muscaetoxricum.? 
Zygadenus angustifolius. 
Penistemon hirsutus.! 
During the summer months: 
Buchnera elongata.” 
Physalis virginiana.” 
Erythrina herbacea, 
Viola palmata.' 
Viola septemloba.? 
Gyrostachys (Spiranthes) praecox) 
Gyrostachys gracilis! 
Lachnocaulon anceps.* 
Asclepias humistrata 
Michx.). 
Asclepias michausil, 
Tetragonotheca helianthoides.? 
Jatropha stimulosa. 
Seutellaria pilosa.” 
Polygala nana. 
Kneiffia linearis.” 
Stilingia sylvatica? 
(A. 
amplexicaulis 
Schwalbea americana? 
Sabbatia angustifolia. 
Helianthemum ramuliflorum. 
Euphorbia corollata angustifolia. 
Euphorbia floridana. 
Zornia bracteata, 
1Carolinian area and northward. 
2 Carolinian area. 
