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ABEKDEEN, FORFAK, and DUMFRIES fLANT-NOTES. 169
Scotland. H. obtmifolium Baclch. This plant wliicli Backhouse
describes as from Clova, has practically uot been re-discovered. It
is not improbable that a IL amjlicum form, with oval entire leaves
and a yellowish green tint, which we have come across in 1884 and
1889, may be the plant which gave occasion to the description of
this doubtful species. H. gothicum Fries. Very abundant and fine
and fine but scarce in Glen
last summer in the Clova Valley (90) ;
Shee (89). H. prenanthoidcs Vill. In the gorge of the Grey Mare's
Tail (72) ; gathered also by Dr. Davidson at Sanquhar two years
ago, when it was first recorded for the county.—'^'H. umbel latuinJj.
Clova Valley (90j. '-H. auratum Fries. Unnamed specimens
were shown us by Mr. J. T. Johnstone at Moffat (72) from that
neighbourhood ; and also sent previously to us by Dr. Davidson,
from Sanquhar (72). We gathered this species at Clova also in
1887, when it was still regarded as H. rigidum, and recorded under
this name in Backhouse's Monograph, and m 1889.
Veronica Beccahunga L. A very small form between two or
three inches high grew beside a reservoir near Braemar (92), at an
elevation of about 1400 ft.
Rhinanthus Crista-Galli L., var, Drummoml-Hayi F. B. White,
was the common and frequent form in Glen Doll and Glen Fiagh
(90), and was also gathered in two different directions near Braemar
(92).
*Calamintha Clinopodium Bentb. Steep rocks by the Grey
Mare's Tail Waterfall ; (72) a dwarf form, usually about 8 m. high,
with wiry rigid stem, and firm strongly nerved leaves.
:-Betula odorata Bechst., var. parvi/olia Wimm. Glen Fiagh
(90). This was named for us by Mr. Arthur Bennett.
Solix Myninites x nigricans. Glen Fiagh (90). Among several
hybrid or uncertain willows gathered last year, this and another
may be safely mentioned. We prefer to grow them for the most
part, or obtain further material, that conjecture, however confident,
may be backed by confirmatory evidence. This hybrid we gathered
at the same spot in a previous year. It is evidently a blend with
one of the narrow-leaved Myrsinites forms. The only S. nigricans
that we observed either year in the same part of the glen was the
type, which gi-ew near at hand, fruiting freely. It is obvious that,
since both these species vary much in some of their characters, the
cross results where they occur arc likely to present even greater
variation. S. herbacea x Lappomim. We have seen this on three
different occasions in a corrie in the Clova district ; but the
material gathered in 1884 and 1887 was insufficient for proof,
though conjecture was easy. Last summer we found stronger
plants, growing close to where H. herbacea and S. Lapponum abounded,
and no other likely parent was near. This was practically conclusive.
Besides this, cuttings taken in 1887 have fiowered at Bournemouth
in May, 1890 ; the ovary is that of Lapponum, only smaller ;
the scale is nearer mucli to that of herbacea ; so is the style, which
seems to wither before it lias energy enough to divide its stigmas,
though this may be due to too dry a situation. The catkins arc
produced on leafy peduncles, and are embraced between the topmost