94 THE JOUENAL OF BOTANY 



not droop except in heavy dews. In both cases the fall may be 

 purely mechanical, corresponding to the weight of the moisture 

 deposited. I have no proof, after careful observations, that the 

 Mallow is ever visited by nocturnal Lepidoptera. My earliest 

 record for flowers, followed by seed, is April 26, 1903 ; my latest, 

 November 15, 1905 ; at that date the stamens were still shedding 

 active pollen. It is rich in honey, and is visited early and late in 

 the season by day-flying Lepidoptera, Diptera, Coleoptera, and 

 Thysanoptera. As my hundreds of tubes of visiting insects are 

 not yet all sorted out, or are at present in the hands of specialists, 

 I am in no position to state final results here. 



M. sylvestris is not like Ballota nigra ; it does not cling to the 

 old enclosures of villages, to the neglect of semi-natural habitats. 

 It is therefore truly areal, i. e., an indisputable native, in Lincoln- 

 shire and the counties round. Though a follower of man, it only 

 seeks his presence for protection from his domesticated stock, 

 which are its worst enemies. It can thrive very well without 

 man's presence, as apparently Ballota nigra never does. It takes 

 a place beside Lamium album in Lincolnshire, and they have 

 approximately the same frequency. 



THE GENUS SALICOBNIA IN DENMAEK. 

 By C. E. Moss, D.Sc. 



Theough the kindness of Dr. C. H. Ostenfeld, of the Her- 

 barium of Copenhagen, I have been enabled to examine the 

 collection of Danish Salicornice. 



Judging from the specimens I have thus seen (and all my 

 remarks naturally need this qualification), there are no perennial 

 forms in Denmark. The northern limit of these would appear to 

 occur in Norfolk, where S. perennis Mill. ( = S. radicans Sm.) is 

 very abundant. There is an old record of this species for North 

 Yorkshire, and I should be glad to know if this has received 

 recent confirmation. 



However, I have recently discovered or re- discovered a species 

 which is interesting as being in some ways a connecting-link 

 between the annual and perennial forms, and this bridging-species 

 is prominent in the Danish collection. I have seen this species 

 growing abundantly in Hampshire : Messrs. Groves have recently 

 sent me specimens of it from Essex ; and Dr. Ostenfeld and Mr. 

 Druce have found it in Ireland. Its occurrence in Ireland is 

 interesting, as this country, like Denmark, appears to be without 

 any perennial Glassworts. I propose to give a fuller account of 

 the plant as soon as I have decided on its botanical name. 



Of course, S. europcBa h. ( = S. herbacea L.), the most wide- 

 spread European Glasswort, is abundant in Denmark ; and it is 

 interesting to be able to record S. ramosissima Woods abundantly 

 in that country. The latter species, I am now able to state 



