WATER-PLANTS. 



193 



List of Plants which have Withstood prolonged Submergence 



at Glasneyin. 



Acorus Calamus. Sweet Flag. July. 

 A. gramineus variegatus. 

 Alisma Plantago. Water plantain. 

 July. 



A. ranunculoides. Lesser water 



plantain. July. 

 Anagallis tenella. Summer. 

 Aponogeton distachyon. Water 



hawthorn. June. 

 Astilbe grandis. August. 

 A. rivularis. July and August. 

 Azolla pinnata. 



Butomus umbellatus. Flowering 



rush. July. 

 C alia palustris. Marsh Call a. July. 

 Caltha palustris. March. 

 C. polypetala. April. 

 Cardamine palustris fl. pi. May. 

 Carex pendula. 

 Cicuta. 



Cladium Mariscus. Prickly twig 



rush, 

 Comarum palustre. 

 Cyperus longus. 

 G. vegetus. 



Dodecatheons. June. 

 Droseras. Sundews. 

 Epilobiums. 



Epipactis palustris. July. 



Equisetums. 



Eriophorum. 



Glyceria fluitans. 



G. aquatica. 



Gratiola officinalis. August. 



Gunneras. 



Habenaria. 



Helonias bullata. June. 

 Hippuris vulgaris. 

 Hottonia palustris. Early June. 

 Hydrocharis. Frog-bit. July. 

 Iris aurea. June. 

 I. Delavayi. July. 

 I. orientalis. June. 

 I. pseudacorus. June. 

 I. pseudacorus alba. June. 

 I. sibirica and varieties. May and 

 June. 



I Juncus effusus. Candle rush. 

 J J", effusus spiralis. 



Lastrea Thelypteris. 

 i Lilium pardalinum. August. 



Lobelia Dortmanni. 



Lobelias. September. 



Lysimachia nummularia. J uly. 



L. nummularia var. aurea. July. 



L. punctata. 



L. thyrsiflora. 



Lythrums. July, August. 



Mentha. 



Menyanthes trifoliata. May, June. 

 Mimulus luteus. July. 

 M. radicans. 



Monarda clidyma. July. 

 Montbretias. August and Septem- 

 ber. 



Myosotis palustris. 

 Myrica Gale. Bog myrtle. 

 Myriophyllum. Water-milfoil. 

 Nuphar. June and July. 

 Nymphaeas. Early June to Octo- 

 ber. 



Oenanthe fistulosa. Water-drop- 

 wort. July. 



Onoclea sensibilis. 



Orchis foliosa. July. 



Orchis latifolia. June. 



Orontium aquaticum. Golden club. 

 June and July. 



Osmund a regalis. Eoyal fern. 



Ourisia coccinea. June, July. 



Parnassia. Grass of Parnassus. 

 August. 



Parochetus communis. July, August. 

 Petasites gigantea. 

 P. palmata. 



Phragmites communis. Eeed grass. 

 Pingnicula grandiflora. May on- 

 wards. 



Polygonum cuspidatum. August. 

 P. sachalinense. 



P. sphaerostachyum. June and 

 July. 



Potamogeton natans. 



Primula japonica. May and June. 



