NEPETA GLECHOMA VAR. PARVIFLORA 253 



Opegrapha herpetica Ach., c.frt. On hazel, near Corrie ; on 

 sycamore, Lamlash, and on ash, Monamore Glen, West. — 0. atra 

 Pers., c.frt. On sycamore, Lamlash, and on hazel, near Corrie, 

 West (in the latter gathering the f. parallela Leight. and also the 

 var. arthonoidea Leight. passing into the ordinary form) ; var. 

 denigrata Schaer., on sycamore, Lamlash. — 0. betulina Sm., c.frt. 

 On sycamores, Lamlash, West. — 0. varia Pers., c.frt. On hazels, 

 Corrie, West. — 0. vulgata Ach., c.frt. On the bark of sycamores, 

 Lamlash, West. 



Graphis scripta Ach., c.frt. Monamore Glen, and on hazel, 

 Corrie, West; var. serpentina Nyl., on ash, Monamore Glen, West. 



Verrucaria maura Wahl., c.frt. Common on sandstone rocks 

 at tide-level, Corriegills, and near Drumadoon Point. — V. nigrescens 

 Pers., c.frt. On a basaltic dyke on the shore, Kildonan, asso- 

 ciated with Lecanora atra, L. parella, Placodium tegularis, and 

 Rinodina exigua ; on quartz-porphyry, Drumadoon Point, and 

 also on indurated shale near the same locality. — V. maculiformis 

 Krempelh., c.frt. Near Drumadoon Point, associated with the 

 next preceding species. — V. rupestris Schrad., c.frt. On lime- 

 stone rocks, in an old quarry at Corrie. 



Acrocordia gemmata Koerb., c.frt. On hazel, Corrie, and 

 along with Opegrapha betulina, on sycamore, Lamlash, West. — 

 A. biformis Oliv., c.frt. On hazel, Corrie, West. 



Arthopyrenia epidermidis Mudd, c.frt. Corrie, and on hawthorn, 

 Lamlash, West. — A. fallax Arm, c.frt. On hazel, Corrie, West. 



Leptoraphis epidermidis Th Fr., c.frt. On hazel, Corrie, West. 



Pyrenula nitida Ach., c.frt. On ash, near Corrie, West. 



Mycoporellum obscurum A. L. Sm. On hazel, Corrie, West. 



NEPETA GLECHOMA var. PAEVIFLOEA Benth. 

 By Eleonora Armitage. 



I came across a fine patch of this plant on the downs above 

 Merrow, in Surrey, at an elevation of about 350 ft., during the 

 latter part of May this year. Ground Ivy in its typical form is 

 exceedingly abundant on all the extensive down-land hereabouts ; 

 many thousands of plants were then in full flower, but only in one 

 spot did I encounter this exceedingly peculiar and conspicuous 

 variety. 



Paradoxical as it may seem, this pallid micranthous form, 

 which one might imagine was so unnoticeable as to be passed 

 over altogether, seemed to stand out from the herbage and arrest 

 one's attention. A circle with a diameter of about three yards 

 presented an appearance of soft greyish green mixed with pale 

 lavender on a background of short green herbage. It was this 

 peculiar fades which marked it out at once from the dark-leafed, 

 purple-blue type plant which was growing in its close neighbour- 

 hood, and of which some specimens were taken at the same time 

 for purposes of comparison, as it was in size and growth the usual 

 down-land form of this somewhat variable plant. 



