108 ’ KANSAS ACADEMY OF SCIENCE. 
5 p.m. Mentzelia ornata, great mentzelia; close in the morning to reopen in 
the evening. 
Silene noctiflora, evening catchfly ; wilt next morning. 
mpp erst es triloba, cone-stem evening-primrose; last nearly all next 
ay. 
6 p.m. Abronia fragrans; wilt early in the morning. 
Datura stramonium, jimson; wilt next morning. 
Convolvulus repens, evening beauty; close next morning. 
Gaura coccinea, scarlet gaura; flowers turn pink next morning and 
fade about 11 a. m. 
Oenothera watsoni, stemless evening primrose; last all next day. 
Oenothera biennis, tall evening-primrose; wilt next day. 
sans he a convolvulaceum, sweet-scented heliotrope; wilt next 
day. 
Oenothera rhombipetala, point-petaled evening-primrose; wilt next 
day about 9 to 10 a. m. 
Oenothera sinuata, small-flowered evening-primrose; wilt next day. 
Oenothera hartwegi; wilt at 10 a. m. next day. 
7 p.m. Oenothera missouriensis, Missouri evening-primrose; wilt at sunrise. 
Oenothera grandiflora, large evening primrose; open very promptly ; 
wilt at 7 a. m. next day. 
Oenothera canescens, pink evening-primrose ; wilt next morning. 
Oenothera fremontii; open promptly ; wilt at 9 a. m. next day. 
Cephalanthus occidentalis, button-bush. 
S$ p.m. Gaura biennis; wilt promptly at 10 a. m. next day. 
Gaura parviflora; wilt about 11 a. m. next day. 
9 p.m. Gaura (Stenosiphon) linifolia; flowers last and remain white all next 
day. 
There are many other plants that open at periodic times; but observations 
upon them have not been sufficient to determine positively their habits. 
(The ‘‘clock”’ contains the names of a few cultivated plants in parentheses.) 
LIST OF PLANTS IN MY FLORIDA HERBARIUM. 
A. S. HITCHCOCK, MANHATTAN, 
Read (by title) before the Academy December 30, 1898. 
The list presented is based entirely upon plants in my herbarium. There are 
yet a number of specimens that remain unidentified, especially among the palms, 
pines, and the genera Paspalum and Panicum. Others have been somewhat 
doubtfully referred to certain species though they show some differences and 
may ultimately prove to be new species. But it seems best to leave the descrip- 
tion of new species to those who have access to the large herbaria. 
For the sake of brevity, the collector’s name is represented by his initial in 
most cases. These initials are: 
C = Mr. A. H. Curtiss, sets of North American plants. 
N= Mr. Geo. V. Nash, sets of Florida plants. 
R= Prof. P. H. Rolfs, Lake City, Florida Agricultural College, who has 
given me much help in the work. 
W = Mr. H. J. Webber, Department of Agriculture, Washington, for several 
years stationed at Eustis. 
S = Mr. J. H. Simpson, plants distributed by the Department of Agriculture. 
