MARYLAND \V FATHER SERVICE 191 



*( 'hondrilla juncea. In the region about three miles west of Annap- 

 olis *Cytisus scoparius, the Scotch broom, has established itself along 

 the highway and railroad, and seems to be spreading. This shrub 

 though ornamental is apt to become a pest, as is the case on Naushon 

 Island, Mass., where it has captured large tracts of exposed hill- 

 side, occupying them to the exclusion of other more desirable plants 

 such as pasture grasses. Prompt steps should therefore be taken 

 in eradicate the plant from Anne Arundel County. 



2. Meso-xerophytic: Among the plants of early summer Cassia 

 chamaechrista, Oxalis spp., *Melilotvs alba, *Trifolium pratense, 

 *Saponaria officinalis, Potent ilia canadensis, and especially *Daucus 

 carota are prevalent; later Lespedeza stuvei, *Lespedeza striata, 

 Euphorbia corollata, "Plantago major, *Plantago lanceolata, *Rumex 

 crispus, Phytolacca decandra, Solarium carol inianum, *Verbascum 

 thapsus, Asclepias cornuti, Apocynum cannahinum and Lobelia in- 

 flata make their appearance, followed by *Clinopodium nepeta, 

 Solidago scrotina and others, Euthamia graminifolia, Ambrosia 

 artemisiaefolia, Achillea millefolium, Chrysopsis mariana, * Arctium 

 lappa and Carduus lanceolatus. 



3. Me so-hydro phytic: In early summer * Allium vineale. Com- 

 melina nudiflora and Prunella vulgaris in open places, with *Poly- 

 gonum persicaria in ditches, are common. A little later Verbena 

 hastata, Verbena urticifolia, *Nepeta cataria, *Glechoma hederacea, 

 Koclha. flexuosa, Mimulus ringens, Eupatorium perfoliaium, Eupa- 

 torium purpureum, Eupatorium coelestinum, Vernonia noveboracense, 

 Bidens beckii and Ambrosia trifida make a more conspicuous cover- 

 ing to the moist places. 



Uuderal vegetation. The plants of rubbish heaps and of dour- 

 yards are included under this head. Although corresponding rather 

 closely to the plants of village streets, a few should be specially men- 

 tioned here. All are widely distributed, and most of them are in- 

 troduced species. Polygonum aviculare and Plantago major are 

 common in paths; Ambrosia artemisiaefolia, Xanthium spinosum, 

 Amaranthus retroflexus, Amaranthus spinosus occupy corners of 



•Indicates introduced species. 



