1889.] NATURAL SCIENCES OF PHILADELPHIA. 361 



Order XX. GRAMINEAE. 



1. Arthrostylidium, sp. ? 

 Bamboo. West Indies. 



2. Chusquea sp. 1 

 Bamboo. West Indies. 



3. Bambusa vulgaris, Schrd. 



Bamboo. In a few gardens. Cosmopolitan, common throughout 

 tropical Asia and America. Height 100 ft. or more. Used for 

 house building, water pipes ; young stems for paper making, for 

 which purpose it is cultivated in East and West Indies. 



4. Eragrostis plumosa. 



5. E. pectinacea, Gray. 



6. E. ciliaris, Lk. 



7. Sporobolus Virginicus, Kth. 



8. S. tenacissimus, P. B. 



9. Stipa. sp.T 

 Feather grass. 



10. Oryza sativa, L. 



Rice. Cultivated sparsely. China. 



11. Chloris ciliata, Sw. 



12. Chloris radiata, Sw. 



13. Dactyloctenium iEgyptiacum, Willd. (Hjalmars.) 



14. Eleusine Indica, G. 



15. Cynodon Dactylon, Pers. ( Griseb.) 

 Bahama Grass, Devil grass. 



16. Paspalum* 

 Wire grass. 



17. Digitaria sanguinalis, Scop. 



18. Stenotaphrum Americanum, Schrk. 



19. Panicum grossarium, L. 



20. P. divaricatum, L. 



21. P. dichotomum, L. 



22. Setaria glauca, P. B. 



23. Cenchrus echinatus. 



A decumbent variety. {Hjalman.) Bur Grass. 



24. C. hirsutus, L. (Merrick.) 



Courage Bush. 



