136 
and fruits well displayed. (The forceps are useful in detaching 
caddis-cases, dirt or other foreign matter.) Then with the right 
hand take hold of the bottom of the paper and gradually^ raise 
it out of the water, when the root will adhere to the paper. 
Now take hold of the top of the paper with the left hand and 
very slowly raise the whole sheet — as a slightly inclined plane — 
out of the water, which will thus run off at the top and leave the 
whole plant adhering to the paper. Care is required, as the 
water finally escapes, to prevent the linear leaves from running 
together and spoiling the effect, but a little practice and patience 
will soon overcome this difficulty. 
Drying. Dry paper and plant together in the press. The 
best results are obtained by putting blotting-paper directly over 
each plant, whatever other paper is used in addition. Change 
the paper after two or three days. Great care is required in 
changing — the blotting-paper should be lifted slowly from the 
root to the apex of the plant, and not in the opposite direction. 
When the whole plant is exposed, straighten out any folded 
leaves, re-cover with dry paper, and change again in a week. 
After that the plants may be left for a much longer period. 
When the plants and their paper-mounts are stone-dry (test with 
the back of the hand) they should be enclosed in folded covers of 
thin paper, and thus protected they keep indefinitely and can be 
readily examined. On no account should gum or other adhesive 
be used for mounting— water and adequate pressure are amply 
sufficient. 
W. H. PEARSALL. 
ADDITIONAL NOTES TO FORMER REPORTS. 
Report (1918 — 20), p. 92. 
Ranunculus Lingua L. Examination of the sheets in the 
Camb. Univ. Hbm. shows that all are more or less clothed on 
Is., upper stems and peds. with appressed hairs. All the sheets 
in the Hbm. E. S. Marshall (recently added) show the same 
character. The glabrous form is not represented at all. — J.E.L. 
Report (1918 — 20), p. 99. 
Mr. Riddelsdell wrote to Mr. Barton : “ Your Rubus Ref. No. 
435 is villicaulis, not calvatus. The same form is in Rogers’ 
herb, with the name corrected from calvatus ” 
