MARYLAND WEATHER SERVICE -!<t7 



Zizia cordate 

 Hydrocotyle americana 

 Hypopitys hypopitys 

 Gentiana andrewsii 

 Cunila origanoides 

 Gerardia purpurea 

 Lobelia inflata 

 Cimicifuga racemosa 

 Peramium pubescens 

 Mitchella repens 

 Cracca virginiana 

 Corallorhiza corallorhiza 

 Chimaphila maculata 

 Pyrola rotundifolia 

 Aralia nudicaulis 

 Elymus canadesis 

 Monotropa uniflora 

 Solidago flexicaulis 

 Collinsonia canadensis. 



SOIL-COVERED SLOPES. 



The Soil-Covered lower Slopes of the mature topography of the 

 Lower Midland District are rich in tree species. It is in this 

 habitat that all of the forms reach their best development, — the 

 Oaks and the Tulip Tree have been seen in several parks and 

 private estates attaining to a height of 125 to 140 feet, a marked 

 contrast to the size reached by the largest trees of the Serpentine 

 Barrens. 



The predominant species are the Tulip Tree, the Beech, the Red 

 Maple, the Bitternut Hickory, the White Ash, the Black Walnut 

 and the Black Gum. Trees of the topland, such as the Black Oak, 

 Chestnut and White Oak are by no means absent, . but it is only 

 the last which is common. The above-named trees vary in their 

 relative abundance, the Tulip, Beech and White Oak together 

 forming from 40% to 60% of the stand and the others above men- 

 tioned varying from 35% to 40%. Other species which are infre- 



