30 Rhod 



ora 



cum, Glaux, Triglochin, and Spartina. The lx>^s have Ckiogene*, 

 Vaccinium oxycoccos, various sedges and rushes, skunk cabbage, and 

 Nemopanthus. Habitats for aquatic plants on Matinicus arc very 

 limited, there being only two ponds. One is artificial and contains 

 one intentional and probably other accidental introductions. The 

 natural conditions for aquatic plants probably are well represented by 

 Black Duck Pond, a small shallow pool pent up by the highest beach 

 ridge and fed l>y seepage from springy ground. The plants occurring 

 here are Sparganium angustifolium, Potamogeton oakeaianua, P. epi- 

 hydrua, Scirpus occidentalis, and an interesting submerged .1 uncus 

 I articulahu). 



Plants evidently without ecologic niches are Equisetum arvense and 

 Viburnum cassinoides, both being found on shore, in marshes, pastures 

 and woods. 



Observations were necessarily incomplete because of the season at 

 which the island was visited. Much more could be learned a( a more 

 favorable time of year. However, botanizing in late fall is not without 

 its peculiar advantages. For instance the number of plants that were 

 found in bloom at this northern locality during the first week of No- 

 vember was surprising. There were no fewer than .">.'5 dicotyledonous 

 plants flowering; how many monocots there may have been was not 

 ascertained — Spirant lies ccniua was the only conspicuous one. The 

 o.'{ species mentioned represent 20 families; Compositae include 20 

 of the species, Cruciferae ">, and Leguminosae, Violaceae, and Labiatae 

 .'i each. In how many eases blossoming should be regarded as a 

 secondary autumnal anthesis is uncertain, bm probably in only 7 of 

 the .").'{ species. For the others the season was normal or an extension 

 of the normal due to the unusually prolonged mild weather. 



The total number of species of vascular plants obtained is 217 

 representing 52 families. The Compositae have 29 species, the 

 Gramineae 18, Rosaceae 18, Ericaceae 12, Cyperaceae 10, and the 

 Pinaceae, Polygonaceae, Caryophyllaceae and Labiatae 7 each. 

 Seventeen families are represented by only a single species each. 

 Besides the species actually collected by the writer, the following were 

 credibly reported from the island: Larix laricina (I)u Etoi) Koch (the 

 only known tree cut down a lew years ago), Acorn* calamus L. (the 

 rootstoeks sugared for sale), Erythronium <uiicric<mun> Ker, Drosera 

 rotundifolia L. (used for healing sore lips), Monotropa unifiora L., 

 and Eupatorium perfoliatum L. 



