56 Rhodora [Marcu 
Hutchinsiae Hook. (=Jubula Hutchinsiae Dumort.).  Frullania 
Hutchinsiae var. BG. L. & N. p. p. Syn. Hep. 775. 1847. F. Hutch- 
insiae var. B integrifolia Lindb. 5. p. Acta Soc. Sci. Fenn. I0: 474. 
1875. F. pennsylvanica Steph. Hedwigia, 22: 147. 1883. F. Hutch- 
insiae var. Underw. Bull. Illinois State Lab. Nat. Hist. 2: 65. 1884. 
Jubula Hutchinsiae var. Sullivantii Spruce, Hep. Amaz. et And. 62. 
1884. Maine: Mt. Desert (E. Z. Rand). New Hampshire: Cho- 
corua ( W. G. Farlow); Jackson (A. W. £.). Vermont: Brattleboro 
(C. C. Frost). Connecticut: Hamden (D. C. Eaton) ; Cheshire, 
Beacon Falls, Woodbridge, Salisbury! Middletown and Rainbow 
(4. W. E.) The known range of the plant extends from Nova 
Scotia to Georgia and westward to Tennessee. 
Jubula Hutchinsiae is regarded by the majority of writers on the 
hepaticae as a variable species with a very wide geographical distri- 
bution. The type specimens were collected by Miss Hutchins, at 
Bantry, Ireland, about a hundred years ago, and the typical form of 
the species is now known in Europe from scattered stations in the 
British Isles and from a very few localities in western France. 
Throughout its entire range it is rare or extremely local, The 
Jubula noted above has usually been referred to /. Hutchinstae 
as a variety, although its very aberrant characters have long been 
recognized. Other divergent forms are known from Madeira, from 
tropical America, from Japan and the East Indies and from various 
islands of the Pacific. A /ubula from the Hawaiian Islands has 
already been separated as /. piligera (Aust.) Evans,’ /. japonica 
Steph. has recently been described from Japan,3 and it is probable 
that other species of the genus will in time be considered distinct. 
In the true /. Hutchinsiae the leaves are characterized by their 
spinose-dentate margins, the teeth varying in number from two to 
twelve but averaging five or six. Most of these teeth are from four 
to six cells long and two or three cells wide at the base, and the 
apical tooth is usually a little larger than the others. The lobule 
is helmet-shaped and inflated, with a broad and truncate mouth, 
and, at the outer basal angle, is often extended in the form of a 
1 These specimens were collected in Sage’s Ravine, very close to the Massa- 
chusetts line. In the writer's Preliminary List, they are accredited to Massachu- 
setts ; this record should therefore be revised. 
2 Trans. Conn. Acad. 10: 406, Pl. 47, f. 12-20. 1900. 
3 Bull, de l'Herb. Boissier, I. 5: 92. 1897. 
