286 



m 



Southworth on' "A New HoUyliock Disease," caused by tlie 

 hitherto undescribed fungus Collctotrichium AltJuvcs. 



Professor Scribner remarked on "The Nature of the Palea 

 and Lodicules ni Grasses." 



The conclusions drawn were : 



1. That the palea are two-keeled prophylla which begin the 



floral branch, and like those of tlie culm-branches, stand with 



their backs toward the main axis or rhachilla of the spikelet ; 



when the flower is carried back on to the rhachilla the palea is 

 wantinf:^. 



2. The lodicules are true scales, in that they belong to the 



epidermal system, and their sole function is to separate the 



glumes hi anthcsls, as the special epidermal development in the 



axils of the panicle-branches serves to diverge these during the 



same period by pressing against the axis from which the branches 

 arise. 



Professor Lazenby called attention to two marked forms of 



inia Creeper, Vitis {A))ipiIopsis) quinqucfolia, one of which 

 clings readily to houses and other structures, while the other 

 does not. The clinging one appears to be native in Indiana and 

 Ohio, while the other is there only found in cultivation. Remarks 

 w^ere made by Professors Beal, l^astin and Claypole. 



Prof. L. II, Pammel read a paper on '* Pollination of the 

 Genus jEscitlusy 



m 



Professor Campbell remarked on "AdventiveBuds o{ Lycopo- 

 dinm lucidulnni^' on "The Arche^^jnia of Ferns," and on " The 

 Germination of the Spores and the Prothalh'a of Osinnr/da:' 



The President appointed as a Committee on Nominations of 

 Officers for the next meeting, Professor Wilson, Mr. Coville and 

 Professor Spaulding. 



Monday, August 25th. 



Mr. F. V. Coville remarked on his descriptive list of the jFimci 

 of Texas; it includes seventeen species, one of which is Texan 

 only, {J. filipciidiitus), fourteen range to the northeast and two 

 are found in the Rocky Mountains. Mr. Coville also exhibited a 

 serviceable collecting knife, the " cotton knife " of the South 



■P 



for the collection of subterra-: 



