460 



BOTANICAL SURVEY OF DISMAL SWAMP REGION, 



(b) THE NEW WOULD ALONE. 



Poll/ podium poly pod ioidcs. 

 Tnglochin striata. 

 Sagittaria land folia. 

 Erianthus saccharoides (Cuba). 

 Paspalum distich inn. 

 Paspalum compressum. 

 Panirnm (jibbum (Cuba). 

 ( 'enchrtis Iribuloides macrocepludus. 

 Uniola paniculata. 

 Eleocharis mutata. 

 Eleocharis ochreata. 

 Steuojihyllus capilla ris. 

 Fimbristylis aiitmiuiaiis, 

 Fimbristylis casta nea. 

 Fimbristylis laxa. 

 Fivibristylis spadicca. 

 Rynchospora cymosa (Cuba). 

 Scleria pauciftora (Cuba). 

 Juncus repens (Cuba). 

 Quercus virginiana (Cuba). 

 Lepidium virginicum. 

 Chamaeerista fascicular is. 

 Bradburya virginiana. 

 Phyllan th us caroliensis. 

 Parthenocissus guinquefolia (Cuba). 



Sida spinosa. 

 Rotala ramosior. 

 Oenothera laciniata. 

 Proserpinaca palustris (Cuba). 

 Pier is nitida (Cuba). 

 Samolus floribu ndvs. 

 Fraxinus caroliniana (Cuba). 

 Oelscm ium sernpervirens. 

 Polypremum procumbens. 

 Sabbatia calijcina. 

 Trachelospiermum difforme. 

 Cuscuta arvensis. 

 Physalis viscosa, 

 Linaria canadensis. 

 Oldenlandia uuiflora (Cuba). 

 Cephalanthus occidentalis (Cuba). 

 Ambrosia artemisiae folia. 

 Eupatorium capillifolium. 

 Willugbaea seandens, 

 Leptilon ca uadense. 

 Pluchea camphorata, 

 Gnaphaliu m purpureum. 

 Borrichia frutescens. 

 Bidens bipinnata, 

 Erech tites h ieraci folia. 



Am nioph da arenaria. 



Osmnnda regalis. 

 Dryopteris spinulosa. 

 Ptcris aquilina. 

 Asplen ittm filix-foemina, 

 Li/copodimii iiinudatuni. 

 Typha angustifolia. 

 Homalocench rus oryzoides. 

 Alopccurus geiiiculatus. 

 Festuca rubra. 

 Carex canescens. 

 Scirpus lacustris. 

 Acorns calamus. 



Zizania aquatica, 

 Pogonia ophioylossoides. 

 Ostrya virginiana. 



2. North Temperate Zone. 



(a) EUROPE ALONE. 



Drosera intermedia. 



{b) EUROPE AND ASIA. 



Ju ncoides campestre. 

 Atriplex hastata. 

 Salicornia herbacea. 

 Salsola kali. 

 Am mode n ia peploides. 

 Tissa marina. 

 Isnardia palustris. 

 Circaea lutetiana. 

 Chimaph ila umbellata. 

 Bidens cernua. 

 Potentilla monspeliensts. 



(C) ASIA ALONE. 



Triadenum virginicum. 

 Monotropa uniflora. 



1'h ryma leptostachya. 



The equatorial origin of the dominant element in the flora of the 

 Dismal Swamp region is strikingly illustrated by the fact that of its 

 nonendemic indigenous species twice as many occur in tropical Amer- 

 ica as in the temperate regions of the Old World. 



