86 BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 
HERACLEUM LANATUM Michx. 
Common all along the harbor in the northeastern quarter of 
the island from Shimmo to Wauwinet, growing up among the 
shrubbery back of the beaches and in the shore thickets; too 
common and vigorous among the rarer native plants on Rattle- 
snake bank; Polpis; west of Sankaty. Tuckernuck. First flowers 
June 2, 1909; conspicuously in bloom June 7, 1908; a few last 
flowers June 29, 1912. 
Daucus Carora L. 
Very abundant, whitening fields and pastures through July, 
August and September. The green umbels begin to unfold about 
the middle of June and the flowers become noticeable early in 
July. First flowers June 26, 1910, June 27, 1912; umbels fre- 
quently pink. 
CORNACEAE 
CHAMAEPERICLYMENUM CANADENSE (L.) Asch. & Graebn. 
Cornus canadensis L. 
Rare, but abundant at one locality in Shawkemo near eerie 
where in a damp shaded thicket it fairly carpets the ground; 1 
occurs also, but sparingly, in a thicket in Polpis. First mS 
June 4, 1909; in full flower June 7, 1908. 
CYNOXYLON FLORIDA (L.) Raf. 
Cornus florida L. 
Not rare among the extensive thickets in Squam where I have 
come upon it at perhaps half a dozen stations, single trees or a few 
together, except in one instance where as many as thirty, most of 
them in poor condition, formed a close group. The trees are 
mostly well matured but not over ten or twelve feet high. At 
Beechwood in Polpis it is more numerous and of freer growth, the 
larger trees having attained a height of certainly 18-20 feet. I 
have seen it elsewhere on Nantucket only near the state road 4 
mile or so west of Siasconset, where a dense thicket conceals 4 
cluster of several old trunks of widespread branchment but not 
over 4-5 feet high, the lower branches nearly prostrate. At 
Beechwood it was in full flower June 12, 1909. A group of small 
trees was found on Tuckernuck, June 17, Ig911. 
