76 



Cyperus L,igularis. Hemsl. Mentioned by Reade, as exist- 

 ing in Paget. I have failed lo trace it. 



Kyllinga Monocephala. Ivinn. (sedge, or bog rush.) This 

 has a strong, creeping root, stem erect, eight to twelve inches 

 high, with several flat, narrow leaves. Flower heads solitary, 

 globose, quarter of an inch wide. Flowers pale green. Com- 

 mon in marshes. Perennial. Jul)' to October. 



Mosses, Lichens, etc. 



Natural Order, Equisetaceae. 



Bquisetwm Palustre. Linn (marsh weed or mare's tails.) 

 It has an upright, almost leafless stem, one to one and a half 

 feet high, jointed, with imbricate or scaly blunt spikes Rare. 

 Pembroke Marshes. (Lefroy.) 



Natural Order, Psilotaceae. 



Psilolum Triquetrum. Svv. A small, wiry, erect plant, with 

 forked branches and minute scaly leaves; spores instead of 

 seeds. Flowerless. Is rare and is confined to Paynter's Vale 

 and the vicinity of the Causeway. 



Natural Order, Spognaceae. 



Sphagnum Palustre. ( Heat Moss. ) A fibrous growing 

 moss, rough, almost hairj', tough. Is found only near mouth 

 of water course. It is the main constituent of peat bogs in the 

 North 



Natural Order Agaricaceae. 



Although Ivefroy quotes Agaricus campestris (edible mush- 

 room) as having been found near Pembroke churchyard, yet 

 I have failed to hear of anyone finding such a growth on the 

 islands. Mushrooms are grown under cover in a few gardens 

 from imported spawn only, and there is no instance that I can 

 trace of their natural growth. 



Natural Order, Bryaceae. 



Tortula Muralis. A small moss forming a green, velvet-like 

 mantle on old walls, rocks and wayside banks. Is common. 

 Its thread-like stems, minute, terminate in small caps contain- 

 ing its spores. 



