180 



MISSOURI BOTANICAL GARDEN. 



^ k 



L, latijol 



and 



Smilacina 



Dracontium and 



and 



ich^ together with Nepda 

 rocks. On the whole, the 

 spring flora is a rosette formation, differing only numerically, 

 both as to SDecies and individuals, from the flora of the cliff. 



from 



ppearcd 



because 



oiimmosae 



best 



A 



tragalus canadensis^ of which the rosettes bore flowers in April, 

 is seconded by A. mexicanus. Cassia Chamaecrista^ Desman- 

 thus hracliylohuSj Strophostyles angulosa and SchranJda un- 

 cinata appear. Discopleura Nidtallii^ Eryngium yuccaefolium 

 and Osmorrhiza hrenstylis make their appearance as isolated 



TO. Different 



individuals. 



everywh 



and 



mum 



as well as Rudbeckia ladniata^ have begun to produce their 

 first flowers, while here and there clumi)s of Monarda fistulosaj 



linifolium and Scutellaria canescens add 

 patches of bright green. Galium Aparine and G. concinnum 

 appear at the edges, as does Tradescantia virginica, together 

 with grasses, chiefly Muhlenhergia glomerata and Uniola lali- 

 folia, Polygonatum giganteum has now reached its highest 



and 



summei 



plant deserve its specific name. In the late 



besides Impatiens fulva^ Cassia marylandica and Campanula 



americana, Compositac such as Eupatorium ageratoides^ E. 



coelestinum.j Rudbeckia lacimaia, Silphium 



'foil 



Solidago latifolia and Vernonia novchoracensisy occur fre- 



quently. 



derived 



shrubs 



THE RAILROAD RIGHT OF WAY. 



Ditches. 



These, bare during the winter, except for the rosettes 

 of Capsella Bur sa-pastoris and Taraxacum officinale, and 



