EUPHRASIA MINIMA 171 
eyebright also —— at that season, and, as has been ascertained 
i case of s other plants, i pe ai be sap aptly that the 
useful Jase ieee in the n leaves of i i eatin 
o test the time for the germination of the seeds, 
Weitatin (on. p . 26) collected seeds of H. minima var. hispidula 
n the Tir n i August 1893; he sowed them on 10 October 
1893 i in a a whish had st en a month earlier prepared and sown 
with grass-seeds, and he found that the former seeds germinated 
on 18 March 1894. Similarly he sowed seeds of E. minima var. 
c 
with the seeds of EH. Rosthovia a Hayne, and also with Z. me 
burgensis Funck, produced eaity like results 
E. mimma Jacq. belongs to the section Eu- ee oe eer: 
subsection Semicalcarate, and to the group Parviflore; among 
British species ie should be placed between E. gractlis aheg and 
E. scottica Wet 
ts ch , differ from those of HE. brevi vipila Burnat & 
Gremli by not having short glanduliferous hairs on the leaves, 
and usually by the colour of the corollas, 45-6 instead of 6- 
10 mm. long. 
rom &. nemorosa Pers. it differs by the less-branched and 
more hairy stems, by the poten obtuse leaves, and in most 
cases id the colour of the flow 
. curta Wettst. it is stated to cong by the longer 
aeons and chiefly by the colour of the 
From E. gracilis Fries it differs by the Jed tos at least on the 
margin and lower face, being finely hispid, and by the colour of 
ti 
rs. 
From E. scottica Wettst. it differs, if at all, by the length and 
shape of the capsules, obovoid or oval-oblong instead of oblong, 
and by the colour of the flowers. 
From EF. Vigurstt F. H. Day vey it differs by the absolute or 
comparative stint! _ -tipped hairs, and by the smaller size 
and colour of the flow 
. montana “dont it differs by the general absence of 
gland-tipped hairs, and by the smaller size and colour of the 
ower 
Wettstein describes and names five hybrids between E. minima 
and other species, one of which is a cross with a species reported 
© 2 in Britain, namely, Huphrasia salisburgensis x EL. minima 
aeggtt Wettst. = H. minima x salisburgensis Jaeggi =? 
inacenn var. aurea Boullu. This hybrid is said to differ 
