412 IOWA ACADEMY OF SCIENCE Vol. XXV, 15)18 



Among the trees and shrubs were many specimens of the 

 common wild plum, Prunus americana Marshall^ and prickly ash, 

 Zanthoxyhim anierwanum, Mill, while the Virginia creeper, 

 Psedera quinquefolia (L.) Greene, and wild grape, Vitis riparia, 

 were everywhere common and on the hedge along the highway 

 grew the climbing bitter sweet Celastrus scandens L. Numerous 

 clumps of the smooth-fruited wild gooseberry, Kibes gracile 

 .Michx., the wild black currant, Bibes floridum L'Her, and the 

 black raspberry, Rubus occidentalis L. occurred throughout. 

 The latter shrub, how^ever, probably was introduced from the 

 cultivated form on some neighboring farm. Sweet cicily, Os- 

 morrhiza brevistUis D. C, was very common, as was beggar 

 ticks, Lapula virginiana (L.) Greene. Dogbane, Apocymtm and- 

 rosaemifolium, L., was fairly common, as was also a species of 

 brome grass, Bromus ciliatus L. A beautiful little orchid and 

 one of the rarest species in the state, paid the grove a visit, but 

 remained only a few years — the tway-blade, Lipans loesellU 

 Richards. Two of the most interesting plants found were ferns, 

 Asplenkim, fUix-foemina Bemh. and Onoclea sensibilis L., of 

 which there were several clumps, all comparatively close to- 

 gether, and giving every indication of having been introduced 

 at the same time. The many forms of lower plant life which 

 occurred probably owed their introduction in a large measure 

 to the ^\dnd. Among the great number and variety of fungi 

 were beautiful specimens of the earth-star fungus, a species of 

 Geaster. Numerous mosses and lichens were found on the trees. 

 It is interesting to note that one day when Dr. Thomas H. Mac- 

 bride of our State University was a guest of the writer, in com- 

 pany with him a half hour was spent under favorable weather 

 conditions in searching for slime-moulds in this grove, with the 

 result that over a dozen species were found and identified by 

 him. 



The quarter-section is now in possession of a new owner who 

 has erected a set of buildings just south of the grove and in the 

 two years that have elapsed since this occurred the plants T 

 have here noted have, with the exception of the hardy shrubs, 

 been very largely exterminated. 



Botanical Department, 

 Iowa State College. 



