44 Rhodora [Marcu 
BIDENS HYPERBOREA Greene, var. arcuans, n. var., caulibus 2-3 
dm. altis ramosis, ramis imis decumbentibus vel arcuato-adscendenti- 
bus; foliis tenuibus attenuato-acuminatis argute serratis, primariis 
0.6-1.3 dm. longis costa subtus prominente; bracteis involucri ex- 
terioribus 3-5 lineari-lanceolatis acutis plus minusve serratis 2-8 cm. 
longis; floribus 15-30; achaeniis exterioribus 5-5.6 mm. longis, 
interioribus 8.5-9.5 mm. longis 1.8-2.4 mm. latis aristis marginalibus 
4-4.7 mm. longis. 
Stems 2-3 dm. tall, branching; the lower branches decumbent or 
arcuate-ascending; leaves thin, attenuate-acuminate, coarsely sharp- 
serrate; the primary 0.6-1.3 dm. long, with the midrib prominent 
beneath; outer involucral bracts 3-5, linear-lanceolate, acute, more 
or less serrate, 2-8 cm. long: flowers 15-30: outer achenes 5-5.6 mm. 
long; the inner 8.5-9.5 mm. long, 1.8-2.5 mm. wide, with the marginal 
awns 44.7 mm. long.—New Brunswick: tidal mud of Miramichi 
River, Newcastle, July 30, 1922, Fernald & Pease, no. 25,321 (TYPE 
in Gray Herb.). 
Gray HERBARIUM 
HABENARIA HYPERBOREA IN RHODE ISLAND. 
ALBERT E. LOWNEs. 
Habenaria hyperborea (L.) R. Br. is so distinctly a plant of northern 
distribution, that it was with considerable surprise that the present 
writer collected the species in the town of Lincoln, R. L, not five 
miles north of the city of Providence. With but two exceptions the 
data at the writer's command show no records for the plant in the 
three southern New England states east of the Connecticut River,— 
at Amherst, Mass. (Ames: Orchidaceae Fasc. IV, 86) and at Bolton, 
Conn. (Graves et al: Cat. of the Flowering Plants and Ferns of 
Conn. 130). Baldwin (Orchids of New England) lists it as occurring 
at Concord, Mass., but there appears to be no existing proof of its 
collection at that station. The present record seems, therefore, to 
extend the range of the species in New England far to the south- 
eastward. 
'The station where H. hyperborea was collected attracted the writer's 
attention early in the year 1922 by the large number of orchids 
which were to be found in a very small compass. Within a radius of 
less than two hundred yards eleven other species were collected, 
several in abundance. The rarest of these (in this instance) was 
curiously Cypripedium acaule, there being but a single plant. H. 
viridis var. bracteata, H. psycodes, Spiranthes cermua, S. gracilis, 
