82 THE JOURNAL OF BOTANY 
products of herbivorous animals. Plenty of nitrogen in an avail- 
able form is probably the chief factor of this Iuxuriance. I have 
also noticed the frequency of sme plants quite away from cowsheds 
and farmhouses, on the wa t the corners of fields where cattle 
frequently shelter from the wind and rain. .Many lichens love to 
in the drive of a moisture- holding wind, such as passes 
through a mountain valley: Lecanora tartarea and Alectoria jubata 
may be taken as examples. If such a drive also goes along a road 
on which are frequently deposited the excreta of animals, some of the 
dust from that road is blown upon the n neighbouring | walls, espe- 
cially in — a the walls obstruct the force of the drive, and 
here I e often noticed an extra lux xuriant growth of Physcia 
parietina. : Abeaiien tose habitat of this lichen is on seaside rocks 
a little above high-wate rk, where it is often associated with 
ness in nitrogen of the rock-surface, caused by the occasional 
droppings of sea-birds on these rocks. The growth of certain 
genera of alge in relation to rich supplies of aitrogeti is bei a fact 
on which I may write some details at a future date.— 
Savicornts PROCUMBENS Sm.—lIn the Flora of Hénpohrg aa 2, 
Thorney Island ”’ (W. Sussex). This is due to-a misiuderstandine - 
did not see it there at all, whereas Ss. appressa Dum. was plen tiful. 
WARD HAL 
Rosa rusicrnosa es var. JENENSIS M. Schulze.—In soi 
Manual, ed. 9, p. 186, this Variety is stated to have ‘‘ ped. recept., 
and back of the sep. glandular,” which are, of course, characters of 
the type. It is a misprint for «« Bap Bg ever nani 
THERA.—Ree an unknown form of nothera 
(previously it anmophile) pe appeared on sandy shores of 
ern Germ is very near Gf. muricata, but it has much 
ieee t pee resembling those of Gi. bi-nnis. The origin of the 
plant is unknown ; perhaps in other localities it may haye been not 
distinguished from (Ef. biennis. In G. Don’s Dichlamyd. Plants, ii. 
p. 685 ie ha ve Rem. says that CH. biennis occurs * par ticularly 
d second ranges of sand-banks on the coast of 
Seregr a eo miles north of Liverpool, in the greatest abun- 
_ dance” ; and a few lines further he asserts : ‘‘on the dreary sand 
truly wild.” The German plan nt grows 
: aiaiaa one the same circumstances. It would be interesting to 
know if rend Lancashire aa is soginom the true @, biennis, ‘and 
Ps whether it grows there still.— Focke. 
| ering season comes 
A ‘It is yet to be found in plenty between Crosby and South. 
yor goo seme to ad ng te ilway on eauaeseh 
: h especially on the sea side of the line. It also has made its 
