6o6 
Willis and Bur kill. — Flowers and 
154. Mentha rctundifolia, Linn. [Lit. N.C.E. 21b.] An escape 
from cultivation. 
Visitors . Hymenoptera. Aculeata : Apidae : (1) Bombus terrestris L., ? sb. 
Diptera. Sarcophagidae : (2) Cynomyia mortuorum L., sh. Muscidae : (3) Lucilia 
cornicina F., sh. (4) Calliphora erythrocephala Mg. (5) Pollenia rudis F., fp. Cordy - 
luridae. (6) Scatophaga stercoraria L., fp. Coleoptera. (7) Meligethes viridescens 
F. All 20. IX. 95, 900 ft. 
Class B, § 32. Linnaea Type. 
155. Linnaea borealis, Linn. [Lit. Brit. 23, 39 ; N.C.E. 1, 3 c, 8, 14, 
14 a, 16, 18, 31, 34 ; Arct. 36 ; Alps 2, 9.] The mouth of the bell is 5 mm. 
in diameter, the length of the bell is 8 mm. The stigma stands 1 mm. 
beyond the longer stamens and is curved downwards so as to rub on the 
back of a visiting insect struggling to penetrate the forest of hairs which 
guard the honey. 
Visitors. Diptera. Anthomyiidae : (1) Trichophthicus hirsutulus Ztt., fp. 
Coleoptera. (2) Meligethes viridescens F. Both at 1,800 ft. 6. VII. 96. 
Class B, § 33. Habenaria viridis Type. 
156. Habenaria viridis, R. Br. [Lit. Brit. Darwin 483 ; Alps 2.] 
Visitor. Coleoptera. (1) Anthophagus alpinus Payk., sh. 1. VII. 96, 
2,400 ft 
Class B, § 34. Calluna Type. 
157. Calluna vulgaris, Salisb. [Lit. Brit. 23, 34, 39 ; N.C.E. 1, 3 c, 
4, 9, 11, 14, 14 a, 16, 18, 24, 25, 33, 34, 40 ; Arct. 36 ; Alps 2 ; Pyren. 17.] 
The first heath to flower is generally on some wind-swept point high up, 
where the plant lies twisted close to the ground ; then it bursts into blossom 
all over the district. As we have shown (Lit. 39) it is probably somewhat 
anemophilous. We have found plants at Clova upwards of thirty years old 
(Graebner, in Engler’s Bot. Jahrbiicher, xx. 1895, p. 500, says that it ceases 
to flower after fifteen years and dies out in about twenty-four years). 
Visitors. Lepidoptera. Rhopalocera : (1) Lycaena icarus Rott., sh. 22 VII. 
95, 800 ft. Heterocera : Noctuidae : (2) Hydroecia nictitans Bkh., sh. 17. IX. 95, 
700 ft. Hymenoptera. Aculeata: Apidae'. (3) Bombus terrestris L., sh. 14-23. 
IX. 95, 7-2,900 ft. (4) B. lapponicus F., sh. 30. VI.-8. VII. 96, 20-2,200 ft. 
(5) B. scrimshiranus Kirby, 14. IX. 95, 2,000 ft. Formicidae: (6) Formica fusca 
Latr., sh. 17. IX. 95, 700 ft. Petiolata parasitica : Ichneumonidae : (7) 1 sp., sh. 19. 
IX. 95, 2,400 ft. Diptera. Syrphidae : (8) Platychirus sp., sh. 22. VI. 95, 1,000 ft. 
Empidae\ (9) Ernpis ? vernalis Mg., sh. 19. IX. 95, 2,400 ft. Muscidae'. (10) Lucilia 
cornicina F., sh. and fp. 14-19. IX. 95, 20-2,400 ft. (n) Pollenia rudis F., sh. and 
fp. 14-21. IX. 95, 9-2,400 ft. Anthomyiidae'. (12) Hyetodesia variabilis Fin. 30. VI. 
