CONTRIBUTION TOWARDS A FLORA OF CAITHNESS 115 



P. POLYGONIFOLIUS, Pour. ! Marsh behind Manse, July 5. 



Here we have the two species growing under the same con- 

 ditions \ polygonifolius is in good fruit, and is typical of the smaller 

 states of it ; natans is in flower the whole plant typical of the 

 Linnean Herbarium specimen, except that the leaves are rather 

 narrower in the Stroma plant. A. B. 



TRIGLOCHIN PALUSTRE, Z. ! V.C., thousands, from 4 to 6 inches 

 high. 



T. MARITIMUM, L. Near the Little Gloup, July 4, but not common. 

 ORCHIS MACULATA, L. \ V.C., white and purple. 



HABENARIA VIRIDIS, Brown. East cliff, July 10. Small, and very 

 difficult to see, in grass near Manse, with Botrychium. At the 

 end of July most of it was only beginning to come up, the 

 flower heads only appearing half an inch from the ground (to 

 top of spike) and leaves either not showing or hidden by the 

 short grass. 



IRIS PSEUDACORUS, L. In ditch south-east, flowering June 30 and 

 later ; frequent. 



SCILLA VERNA, Huds. ! Dozens of it in flower, June 28, near top 

 of cliff west of Manse. Extremely common on cliffs at east 

 and west sides. 



NARTHECIUM OSSIFRAGUM, Huds. July 22, east cliff. I only saw 

 this one small patch in the island ; but perhaps I was rather 

 too early for it I left Stroma on August 2. 



LUZULA CAMPESTRIS ! Frequent. 

 JUNCUS BUFONIUS, L. West of Manse. 

 J. SUPINUS, Ma'nch \ 



J. CONGLOMERATES, L. ! 



J. GERARDI, Lois. \ North-east rocky shore, July 15. 



J. SQUARROSUS, L. \ C. in heather near Manse, bud June 30. 



SCHCENUS NIGRICANS, L. \ One small patch in ditch, top of cliff 

 north of Manse. 



SCIRPUS SETACEUS, L. A few strong clumps in ditch west of Manse, 



July 5- 

 S. PAUCIFLORUS, Light. \ July 5. 



S. PALUSTRIS, L. \ July 5. 



S. UNIGLUMIS, Link. \ July 4. 

 S. CCESPITOSUS, L. \ June 29. 



ERIOPHORUM ANGUSTIFOLIUM ? Rot/i. Common in damp places, 

 June 29. 



