3l8 FLORIDA GEOLOGICAL SURVEY SIXTH ANNUAL REPORT. 



+.001 Croton argyranthemus High pine land 



+.001 Sporobolus gracilis (A grass) High pine land 



++.OOI Actinospermum 



angustifolium High pine land 



+ Andropogon scoparius 



(X?) , Broom-sedge Old fields 



+ Lespedeza hirta High pine land 



FTelenium tenuifoHum (X) Bitter-weed Roadsides, etc. 



Acanthqspermum australe (X) Roadsides, etc. 



+ + Lygodesmia aphylla High pine land 



+ Rumex hastatulus (X) (Sorrel) Fields 



+ Stillingia sylvatica (Queen's delight) High pine land 



+ Amsonia ciliata High pine land 



+ Glottidium vesicarium (X) Waste places 



++ Berlandiera subacaulis High pine land 



+ Vernon,ia angustifolia High pine land 



+ + Piriqueta Caroliniana High pine land 



+ Heteropogon 



melanocarpuis (X) (A grass) Old fields 



+ Cnidoscolus stimulosus Nettle High pine land 



+ Baptisia LeContei? High pine land 



++ Silphium compositum High pine land 



Erigeron ramosus (X) Old fields, etc. 



Euthamia Caroliniana (X?) Around ponds, etc. 



Chrysopsis aspera? High pfne land 



Dolicholus simplicifolius (Dollar-weed) High pine land 



+ Opuntia vulgaris Prickly pear High pine land 



+ Hymenopappus • 



Carolinensis (X) Old fields, etc. 



+ Indigofera Caroliniana High pine land 



+ Eupatorium album High pine land 



Leptilon Canadense (X) Fields, etc. 



+ Dactyloctenium 



Aegyptium (X) Crowfoot grass Cultivated fiel.d= 



Cassia Tora (X) Cofifee-weed Waste places 



Sericocarpus bifoliatus High pine land 



+ Calophane^ oblongifoHa High pine land 



+ Scutellaria multiglandulosa High pine land 



Scleria glabra (A sedge) High pine land 



+ Stenophyllus Warei (A sedge) High pine land 



(and about 75 others). 



Most trees which prefer damp soils or clayey soils are scarce or absent in 

 this region. Small trees, shrubs and vines are relatively scarce, too, doubtless 

 because most such plants cannot stand much fire, and areas sufficiently protected 

 from fire for them to flourish (such as swamps) are very limited. The most 

 abundant shrub, the saw-palmetto, is less abundant here than it is in most other 

 parts of Florida. The first seven shrubs and some of the others have thick under- 

 ground stems which quickly send up new shoots after a fire, while the eighth, 

 which is very sensitive to fire, grows only in the poorest soils, where the vege- 

 tation is too sparse to carry flames readily. (See fig. 82.) Most of the 



