130 ILLINOIS ACADEMY OF SCIENCE 



7. Wolffia Columbiana, exceedingly abundant years ago 

 north of Clarke, Indiana, but absent elsewhere in all three 

 areas. (G). 



8. Commelina Virgimana, on the dry dune sand S. E. of 

 Clarke, Indiana, and on the sand bluff of the Mississippi river 

 in Jo Daviess. (See Gray 7th Ed.) (G. or I.) 



9. Allium stellatun% one station on C. B. & Q. railway, 

 sand prairie, Jo Daviess. (A). 



10. Camassia, abundant in Cook; in one or two stations in 

 Jo Daviess. A plant much used by the Indians as a food plant. 

 (B. and A.) 



11. Clintonia borealis, in two tamarack swamps in Lake 

 county, Indiana. A numerous colony in each. Plainly an 

 extension from the northeast. (C). 



12. Trillium sessile, in woods south of Naperville and on 

 Salt Fork of Des Plaines river. A very rare or over-looked 

 species. Never have seen the plant in its place of growth. (G). 



13. Cypripedium hirsutum, excessively abundant, formerly 

 in Lake county, Indiana, equally common now in Southwest 

 Michigan. Found in two very peculiar habitats in Jo Daviess, 

 one on a dry wooded hillside, and the other on the crown of a 

 limestone cliff, four miles distant from the first station. (G? 

 or I.) 



14. Orchis spectabilis, very rare in all counties, except in 

 one locality in Fulton where a half acre was found absolutely 

 a colored sheet of bloom. Probably a thousand plants here. 

 Certainly some condition was exceedingly favorable to account 

 for the number and vigor of the plants. (G). 



15. Habenaria leucophaea. Until five years ago, the rar- 

 est orchid in the writer's experience, and then two finds, one in 

 Cook and one in Jo Daviess, disabused his mind about this 

 rarity, but puzzled him the more as to why they were there. 

 The Cook county station was on the flat, moist prairie of a 

 vacant property, near Elston avenue, Chicago, where many 

 score of plants grew. The Jo Daviess station was in two 

 grassy swales on the right of way of the I. C, where the 

 plants flourished by hundreds. Before these finds, two plants 

 had been seen: one on a hillside near No. 13, and one on 

 Platte Island in Platte River, Neb., near Fremont. (E). 



