14 



PLANT MFK <>l" .\LAI5AMA. 



riic tdlliiwiiiLT :ii'i' <'t wide cniit iin'iilal ranjic rasl <it the Ivocky 

 Mduiitaiiis, cxtciuliii','' to tlic C'uroliMiiiii an-a, tlif liist Itciiiu- ll"' most 

 aliuiulaiit spt'cies of tlu' clrv pint* harrciis: 



.\nihnpo()0)i siajitiriiui.^ Sjiuriiliu/ux liini/iJoliiiK.^ 



('Iiriixiijuii/ini (tiTiiaceiiJt.^ S/tDrolnihix mylri-tus.* 



S/iDriihohi.i jiuimis. SjinriilKilns rat/I iiorllnnis.^ 



Tlif I'ollowinL;' rt'prc^ciitat i\('s ol' the ( '\ ptTacrac air t'oiiii(l aiiionj^ 

 I lie xci'opliilc i»laiit associations, mostly of the Louisiaiiiaii area: 



( ^i/perus mnrtindaUi. 

 ( 'i/prriix retrafrnctm.'^ 

 Jii/vchof^pora [p'aifii. 

 Ji!/)tchQspora intermedia. 

 Sderia riliata. 



/Sdcria elliollii. 

 SlenophyUus cilicUiJ'ollnx. 

 Carex festucn cen . ' 

 Carex muhlenhergii. ' 

 Juncus torreyi} 



Tho xerophile species of other families associated with these gluma- 

 ccous ])lants are for the laro-est part at homo in the Louisianian area. 

 Fully two-thirds of tho numerous Lej^uminosae and C'ompositae occur- 

 ring in this region are confined to that arosi. Omittinu' the common 

 spcM'ios of wide distribution, tho following-, named in tho succession of 

 their flowering, give character to the xerophilo horhacoous associations 

 of the rolling pine uplands. As the first harbingers of spring, appear 

 before and in the beginning of February: 



Houston ia roiundifolia. 

 Epic/aea repcm.^ 



These are succeeded by: 



Helianthemuin carolinianum. 



Astragalus rillosus. 



Ltiplnns diffusus. 



Iris verna. 



Cfirysogonum virginianum.^ 



Oxalis recurva. 



Oralis Jillpes.^ 



Asryrum pitm Hum. 



Pidox pilosa detonsa. 



Phlox amoena.^ 



Lvpinus nuttallii. 



Limodorum parvijlorum {Caloj>ogon 



parviflorus Lindl.) 

 Chrosperma muscaetoxicum.^ 

 Zygademis a ngustifolius. 

 Pentstemon hirsuius.^ 



During the summer months: 



Buchnera elongaia.^ 

 Physalis virginiana.'^ 

 Erythrina herbacea. 



Viola palmuta.^ 

 Viola septemloba.'^ 



Gyrostachys {Spiranihes) praecox.^ 



Gyrostachys gracilis. ' 



Lachnocaulon anceps.'^ 



Asclepias humistrata {A. amplexicaulis 



Michx.). 

 Asclepias michauxii. 

 Tetragonotheca helianthoides.^ 

 Jatropha stinndosa.'^ 

 Scutellaria pilosa.'^ 

 Polygala nana. 

 Kneiffia linearis.'^ 

 Stillingia sylvatica.'^ 

 Schwalbea aviericana.^ 

 Sabhatia angustifolia.'^ 

 Helianthemum ramuliflorum. 



Euphorbia coroUata anguslifolia. 

 Euphorbia floridana. 

 Zornia bracteata. 



' Carolinian area and northward. 



* Carolinian area. 



