Hybrids of Galium. 
35 1 
which takes place through the hydathodes of the higher plants. The 
sporophores of other Polyporeae often liberate drops of fluid from 
their hymenial surface and in the case of Polyporus hispidus 
considerable quantities of liquid are known to drip away in this 
manner. The exudation of water from the hyphse of other fungi is 
of common occurrence. One may recall the case of Pilobolus 
crystallinus, on the sporangiophores of which drops of liquid are 
frequently seen. 
HYBRIDS BETWEEN GALIUM VERUM & G. MOLLUGO. 
By Eleonora Armitage. 
[Text-Fig. 45.] 
> \HE following notes describe three distinct forms of Galium 
hybrids which I found this year in Herefordshire growing 
with their parents, G. verum L. and G. Mollugo L. The forms B 
and C I had found before, but A was new to me. Tables and 
figures are added to give a rapid comparative view. The drawings, 
measurements and notes were made from the fresh material. In 
describing the leaf-whorls, the usual systematic designation of 
“ leaves,” without differentiating leaves and stipules, is retained. 
The descriptions are taken from the whorls of leaves on the primary 
stems, not the branches; and as the leaves vary in size according 
to their position on the stem, becoming smaller upwards, the 
measurements have been taken from medium leaves in the middle 
of the stem, all thus pointing to a mean. The two species are first 
described, as affording the greatest contrasts. 
No. 1. Galium verum L. The stem of this plant has four 
obscure angles. The leaves are narrowly linear with a sharp point, 
margin inrolled ; the upper surface slightly rugose, and with small 
prickles, but appearing smooth and shining to the naked eye. 
There is a row of larger, forward-pointing prickles on the apparent 
edge of the leaf, not on the margin, where, as the latter is inrolled, 
they would be useless. As the leaves are bent back downwards to 
the stem, the prickles function as reflexed and act as holdfasts. 
The leaves are 7 to 8 in a whorl, 18 mm. long. The bright 
