80 BICKNELL: FERNS AND FLOWERING PLANTS OF NANTUCKET 
*LATHYRUS TUBEROSUS L. 
In Quaise, making a luxuriant tangle among the grass along 
and near an old fence. Not yet with any signs of flower buds 
June 9, IgII. 
Aptos Aptos (L.) MacM. 
Rather common in low grounds and on the borders of swamps. 
In full flower at the middle of August, 1906; no flowers seen in 
September. 
FALcAaTA PitcHert (T. & G.) Kuntze. 
Sparingly in Watt’s Run bog at the border of a wet thicket, 
Sept. 17, 1907, well fruited and with some faded flowers remaining. 
Stems retrorsely rusty-villous; larger leaflets oblong-ovate, 7 cm. 
long by 4 cm. wide, appressed-hairy on both surfaces; calyx 7 
mm. long; pod 3 cm. long or longer, the margins retrorsely 
hispid-villous; sides of the mature valves glabrous. 
Referred to F. Pitcheri with reservations pending a more critical 
study of our hog peanuts than seems yet to have been attempted. 
The indications appear to point to more than two species in our 
flora. The Nantucket plant is scarcely identical with typical 
F. Pitcheri, ordinarily an inhabitant of low open thickets, yet it is 
certainly closer to that species than to F. monoica, a smaller and 
more delicate woodland plant. The latter was not seen on Nan- 
tucket, but it is locally common on Marthas Vineyard in the 
hilly woodland on the western side of that island. It is mentioned 
in Mrs. Owen's catalogue but the exact plant intended cannot 
now be known. 
