154 The Ottawa Naturalist. [March 



1ST A TVT-n- ' Time of Seed 



^AMb Flowering Mature 



Castalia odorata (Ait.) W. & W Jul 9 Aug 6 



Ranunculus delphinifolius Torr May 7 Jun 18 



Ranunculus sceleratus L May 24 Jun 21 



Ranunculus abortivus L May 7 Jun 11 



Ranunculus recurvatus Poir May 28 Jun 27 



Ranunculus fascicularis Muhl Apr 16 Jun 11 



Ranunculus septentrionalis Poir Jun 4 Jul 4 



Ranunculus repens L May 24 Jul 5 



Ranunculus pennsylvanicus L.f Jul 9 Aug 6 



Thalictrum dioicum L Apr 23 Jul 6 



Thalictrum polygamum Muhl Jul 13 Oct 18 



Hepatica triloba Chaix Apr 4 Jun 10 



Anemone virginiana L Jun 14 Sep 11 



Caltha palustris L May 10 Jun 17 



Aquilegia canadensis L Jun 1 Jun 24 



AcTAEA RUBRA (Ait.) Willd May 24 Jul 15 



Menispermum canadense L Jul 6 Sep 23 



Podophyllum peltatum L Jun 7 Aug 15 



Caulophyllum thalictroides (L.) Michx.. . Apr 4 Aug25 



Sanguinaria canadensis L Apr 9 Jun 25 



Chelidonium majus L May 21 Jun 28 



Papaver Rhoeas L Jul 2 1 Aug 1 5 



FuMARiA officinalis L Aug 4 Sep 9 



Berteroa incana (L.) DC Jul 23 Oct 16 



Lepidium apetalum Willd Jun 1 Jul 10 



CapsellaBursa-pastoris (L.) Medic May 24 ]x\n 17 



Camelina microcarpa Andrz Jun 3 Jul 7 



Brassica alba (L.) Boiss Jul 1 Sep 15 



Brassica nigra (L.) Koch Jul 6 Sep 25 



Sisymbrium officinale (L.) Scop Jul 9 Aug 31 



Radicula Nasturtium-aquaticum(L) B.&B. Jun 15 Jul 25 



Barbarea stricta Andrz May 20 Jul 29 



Eruca sativa Aug 1 Sep 25 



Sarracenia purpurea L Jun 20 Aug 2 7 



Penthorum sedoides L Jul 30 Aug 26 



MiTELLA DiPHYLLA L May 1 1 Juu 3 



Parnassia caroliniana Michx. . . .■= Sep 16 Sep 31 



Physocarpus opulifolius (L.) Maxim Jul 3 Sep 7 



POTENTILLA RECTA L JuU 18 Aug 6 



Potentilla palustris (L.) Scop Jul 1 Jul 23 



Geum canadense Jacq Jun 25 Aug 2 5 



Geum strictum Ait Jul 13 Sep 4 



Geum rivale L Jun 3 Jun 28 



Geum triflorum Pursh May 24 Jun 2 5 



Agrimonia gryposepala Wallr Jul 18 Sep 10 



