1916] The Ottawa Naturalist. 157 



Time of Seed 



NAME Flowering Mature 



Galium Aparine L May 2 1 Jul 1 



Galium Aparine VAR.VAiLLANTn(DC.)KocH. May 19 Junl7 



Galium circaezans Michx Jun 30 Aug 13 



Galium trifidum L Jun 15 Aug 23 



Galium Mollogo L Jtil 1 Sep 4 



Cephalanthus occidentalis L Jul 27 Oct 7 



Triosteum aurantiacum Bicknell Jun 8 Sep 2 



DiPSACus sylvestris Huds Aug 11 Sep 11 



EcHiNOCYSTis LOB ATA (Michx.) T. & G Aug 2 Sep 2 5 



Lobelia siphilitica L Jul 20 Oct 14 



Eupatorium purp'ureum L Aug 2 Sep 17 



Eupatorium perfoliatum L Aug 1 1 Oct 15 



SoLiDAGO SQUARROSA Muhl Aug 2 7 Oct 15 



SoLiDAGO juNCEA Ait Aug 23 Oct 22 



SoLiDAGO GRAMiNiFOLiA (L.) Salisb Aug 2 5 Oct 22 



Aster macrophyllus L Aug 31 Oct 19 



Aster novae-angliae L Sep 2 Oct 2 1 



Aster multiflorus Ait Sep 19 Oct 30 



Aster puniceus L Aug 31 Oct 21 



Inula Helenium L Aug 11 Oct 25 



Xanthium spinosum L Aug 5 Oct 29 



Xanthium canadense Mill Sep 1 Oct 16 



Xanthium echinatum Murr Aug 2 Oct 2 1 



RuDBECKiA HiRTA L Jul 27 Sep 18 



Helianthus stromosus L Aug 23 Sep 27 



BiDENS frondosa L Aug 3 1 Oct 2 



Bidens cernua L Sep 1 Oct 23 



BiDENS LAEVIS (L.) BSP Aug 3 1 Oct 15 



Anthemis arvensis L Jun 10 Jul 26 



Tanacetum vulgare L Aug 17 Oct 14 



Artemisia vulgaris L Aug 22 Sep 29 



Erechtites hieracifolia (L.) Raf Aug 20 Sep 17 



Senecio vulgaris L Jul 10 Aug 20 



CiRSiUM muticum Michx Aug 31 Sep 2 



Onopordum Acanthium L Aug 23 Oct 9 



Centaurea Cyanus L Aug 1 Aug 25 



Cnicus benedictus L Aug 15 Oct 1 



Lapsana communis L Jul 1 5 Aug 13 



Tragopogon pratensis L Jun 4 Jul 1 5 



Lactuca scariola L Aug 1 Aug 31 



