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14. Aquatic species of Eicciacece should be looked for.
Minute Jiongcmnanniacece are found on tlie foliage of other
plants.
15. Podostemacece are found in rocky running streams in hot
countries. They liave a remarkable superficial resemblance to
Hepaticse. Except at the flowering season tliey are altogether
submerged. Specimens sliould be preserved in spirit as well as
dried.
16. Fungi.—TAie notes of all fleshy fungi, especially as regards
colour ; the spores should be allowed to fall on paper, and
the colour of these noted also. The fleshy species may sometimes
be advantageously immersed in spirit before preparing for
the herharium.
17. Examine the fungi which grow on ants’ nests, taking
care to get perfect as Avell as imperfect states, and to secure, if
possible, specimens which have not burst their volva.
18. Look out for luminous species, and ascertain whether
tliey are luminous in themselves, or whether the luminosity
depends on decomposition.
19. Secure specimens of all esculent or medicinal fungi
which are sold in bazaars, noting, if possible, the vernacular
name.
20. Note any species of fleshy fungi which arise like the
Pietra Fungaja from a mass of earth impregnated with mycelium,
or from a globose resting-mass.
21. Attend especially to. any fungi which attack crops,
whether cereal or otherwise ; and particularly gatlier specimens
of vine-mildew and potato-milderv, should they be met with.
Even common wheat-mildew, smut, &c., should be preserved.
22. In every case note date of collection, soil, and other
circumstances relative to particular specimens.
23. Look after those fungi which attack the larvm of insects.
24. In the case of the Myxogastres, sketches should be made
on the spot of their general form, with details of microscopic
appearance. It wouid be worth while attempting to preserve
specimens for future microscopic examination by means of
osmic acid.
25. A/^«.—Marine algae may be found between tide-marks
attached to rocks and stories, or rooting in sand, &c.; those in
deeper water are got by dredging, and many are cast up after
storms ; small kinds grow on tlie larger, and some being like
flesliy crusts on stones, slielis, &c., must be pared off by means
of a knife.
The more delicate kinds, after gentle wasiiing, may be floated
in a vessel of fresh water, upon thick and smooth writing or
drawing p ap e r; then gently lift out paper and plant together,
allow some time to d rip ; then place on the sea-weed clean linen
or cotton cloth, anct on it a sheet of absorbent paper, and submit
to moderate pressure—many adhere to paper but not to cloth ,
then change the cloth and absorbent paper till the specimens
are dry. Large coarser kinds may be dried in the same way as
land-plants; or are to be spread out in tlie shade, taking care
to prevent contact of rain or fresh water of any k in d ; Avlien
sufficiently dry, tie them loosely in any kind of wrapping paper;
those preserved in tliis rough way may be expanded and fioated
out in water at any time afterwards. A few specimens of eacii
of the more delicate algie ought to be dried on mica or glass.
A note of date and locality ought to be attached to every
species.
Delicate slimy algm are best prepared by floating ^ out on
smooth-surfaced paper (known as “ sketcliing paper ), then
allowed to drip and dry by simple exposure to currents of air,
without pressure.
26. Very little information exists regarding the range of depth
of marine plants. It will he very desirable that observations
should be made upon tliis subject, as opportunity from time to
time presents itself.
Professor Dickie remarks, and the caution should be borne
in m i n d “ When the dredge ceases to scrape the hottom, it
becomes in its progress to the surface much tlie same as a
towing-net, capturing bodies wliicli are being carried along by
currents, and therefore great caution is necessary in reference to
any marine plants found in it. Sea-weeds are among the most
common of all bodies carried by currents near the surface or at
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