THE NATURALIST'S CALENDAR 399 



July 14. Aug. 29 Young martins and swallows begin to 

 congregate. 



14 Potato fl. 



15 Angelica sylv. fl. 

 15-25 Digitalis ferrugin. fl. 



1 5 Senecio jacobaea (ragwort) fl. 



15 Solidago virgaurea (golden rod) fl. 



16 Centaurea calcitrapa (star thistle) fl. 



16 Oenothera biennis fl. 

 17. Aug. 14 Pease cut. 



17 Galega officin. fl. 

 17. Aug. 21 Apricots ripe. 



17 Stachys palustr. fl. 



17 Epilobium ramos (branching willow- 



herb) fl. 



17. Aug. 7 Rye harvest begins. 



18. Aug, 15 Chlora perfol. (yellow centaury) fl. 



18 Lathyrus aphaca (yellow vetchling) fl. 

 18 Circaea lutetiana (enchanter's night- 

 shade) fl. 



18 Eupatorium cannabin. (water hemp 



agrimony) fl. 



19 Campanula latisol (giant throatwort) fl. 

 19 Euphrasia officin. (eyebright) fl. 



19. Aug. 10 Humulus lupulus (hop) fl. 



19 Poultry moult. 



20 Cuscuta europ. (dodder) fl. 



20 Gentianum centaureum (lesser cen- 



taury) fl. 



20 Sium nodiflorum fl. 



21 Spergula arv. (spurrey) fl. 

 21 Trifolium arv. fl. 



21 Polygonum fagOj vr. (buckwheat) fl. 

 21. Aug. 23 Wheat harvest begins. 



22 Sparganium erect, (great bur-reed) fl. 

 22-3 1 Hyper, elodes (marsh St. John's wort) fl. 

 22 Drosera rotundifolium (sundew) fl. 



22 Comarum palustr. (purple marsh cin- 



quefoil) fl. 



