1890.] Botany. 963 
7. A New Hollyhock Disease (Colletotrichum althee), byE. A, 
SOUTHWORTH ; giving the results of studies of this destructive disease, 
with an accotint of germinations and inoculations. 
8. The Nature of Palex and Lodicules in Grasses, by F. L. ScRIB- 
NER; discussing the homologies of the grass-flower and spikelet, and 
concluding (1) that palez are simply prophylla beginning the floral 
branch, and (2) that the lodicules are true scales belonging to the epi- 
dermal system, whose function is to expand the glumes in anthesis. 
9. Two forms of Ampelopsis quinguefolia, by W. R. LAzENBY ; differ- 
ing in the structure of their tendrils, developing discs in one (native 
form), and not in the other (cultivated form). 
to. On Pollination in the genus ZEsculus, by L. H. PAMMEL; 
detailing the results of studies of several species. 
11. Notes on the Adventive Buds of Lycopodium. 
12. Notes on the Archegonia of Ferns. 
13. Germination of the Spores and the Prothallia of Osmunda. 
Three papers by D. H. CAMPBELL, giving the results of careful struc- 
tural studies. 
14. Notice of a Descriptive List of the Junci of Texas, by F. V. 
CoviLLE; referring to the work done on Junci for the forthcoming 
Manual of the Texan Flora. 
15. Apparatus for Vegetable Physiology, by J. C. ARTHUR ; show- 
ing drawing of some new apparatus made in the physiological labora- 
tory of Purdue University. 
16. Report on the Botanical Exchange Club, by F. V. CovirrE; 
reporting that the ii is now ready to make exchanges, "oin on 
hand about 5000 specim 
17. Plant Colonists * gu Ohio, by E. W. CLAYPOLE; giving 
a few notes upon certain common introduced plants in Northern Ohio. 
18. A Serviceable Collecting Knife, by F. V. CovittE; being, in 
: Short, the ** cotton knife’’ of the Southern States. 
19. Double Flowers in Wild Morning Glory ( Convolvulus sepium). 
20. Peculiarites of the Pollen of Zpilobium palustre var. oliganthum. 
21. A Supposed Hybrid between Tragopogon porrifolius and T. 
pratensis. Three short papers by B. D. HALSTED 
22. A Mode of Spore Discharge in a Species of Pleospora, by Miss 
E. Por 
Cay te Scab, Yun L. BorLey ; concluding that the disease is 
due to bacteria. 
On Monday the club made an excursion to Garland Dell, locally 
known as ‘The Shades of Death," and had a most enjoyable time 
