MISSOURI BOTANICAL GARDEN BULLETIN 23 
States and Mexico; Prof. A. Nelson, plants of Colorado ; New 
York Botanical Garden, flowering plants from Bermuda, and 
fungi from Florida; L. O. Overholts, flowering plants from 
Ohio, Indiana, Missouri, and Colorado, and fungi from vari- 
ous localities; Prof. W. A. Setchell, fungi from California 
and Washington; H. Sydow, “Fungi exotici exsiccati,” Fasc. 
VII, VII, IX, Nos. 301-450; Stuart L. Thompson, plants 
of Manitoba; U. S. Dept. of Agriculture, plants of China, and 
“American Grasses,” Nos. 201-400; U. S. Nat. Museum, 
plants from South America, fragments of types of American 
senecios, and fungi from New Mexico; Dr. H. von Schrenk, 
flowering plants and fungi from various localities; Univer- 
sity of California, plants of California; T. O. Weigel, plants 
of the Philippine Islands, and Zenker’s “Plantae Kamer- 
unenses,”” Cent. VI, Nos. 500-599; J. R. Weir, fungi from 
western United States and British Columbia. A complete 
list of the accessions received during each month of the year 
has been recorded in the successive issues of the BULLETIN. 
Mounting and Distribution—The mounting of her- 
barium specimens has continued throughout the year; and 
nearly all material received on current accessions has been 
mounted, poisoned, and incorporated in the general her- 
barium. In addition to this, the excellent suite of specimens 
acquired by the purchase of the private herbarium of Mr. 
Ernest J. Palmer has been mounted; and the Letterman 
herbarium, which was purchased in 1913, has been partly 
organized. From the latter collection more than 7500 speci- 
mens have been mounted and distributed in the general her- 
barium, and several thousand specimens have been laid out 
in sets as exchange material, ready for distribution to corre- 
spondents. Very few exchanges have been made, because of 
the unusual delays and risk involved in sending material to 
European institutions. The mounting has been very greatly 
facilitated by the introduction of a specially constructed 
movable metal case for use in poisoning herbarium speci- 
mens. 
Field Work.—The coéperative field work which has been 
carried on so successfully during the past two years with the 
Arnold Arboretum has been continued, and Mr. E. J. Palmer 
has been in the field the entire season from the middle of 
March to November, except for a brief period in August. A 
general botanical survey has been conducted in western 
Louisiana, eastern Texas, southeastern Oklahoma, and south- 
western Arkansas. Collections have been made at Natchi- 
toches, Chopin, Grand Ecore, Creston, Shreveport, Alexan- 
