— 28 — 
CetraHa pallidula is most closely related to C. platyphylla Tuck., being iden- 
tical with that species in habit and surface of thallus, but distinct in the color. 
From C. Oakesiana Tuck, it differs in habit and in the absence of soredia. From 
C. juniperina (L.) Ach. it differs in habit, in the white medulla, and in the 
globose spores. According to th 9 classification adopted by Dr. Zahlbruckner in 
Engler & Prantl’s Die Naturlichen Pflanzenfamilien, Teil i, Abteilung i*, this 
species would fall in the genus Nephromopsis, in which case its name should be 
Nephromopsis pallidula (Tuck.) Riddle. 
Wellesley College, Wellesley, Mass. 
REVISED LIST OF HEPATICS COLLECTED IN AND NEAR WORCES- 
TER, MASSACHUSETTS (Concluded) 
Helen E. Greenwood 
42. Calypogeia Sullwanlii Aust. Damp shaded soil. Worcester, Leicester- 
43. Calypogeia Trichomanis (L.) Corda. Common. On shaded banks im 
woods, by roadsides. Worcester, Leicester, Holden, Oxford. 
44. Bazzania trilobata (L.) S. F. Gray. Quite common. On shaded banks, 
in woods, base of cedar trees, rotten logs, swamps. Worcester, Oxford, Holden- 
45. Lepidozia reptans (L.) Dumort. Shaded banks and damp soil in woods. 
Worcester, Leicester. 
46. Lepidozia sylvatica Evans. Damp soil, shaded. Worcester. 
47. Blepharostoma tricophyllum (L.) Dumort. Damp shaded soil, with, 
mosses or other hepatics. Leicester, Sutton. 
48. Ptilidium pulcherrimum (Web.) Hampe. Common. Rotten logs, base- 
of trees, shaded rocks, damp shaded soil. Worcester. 
49. Trichocolea tomentella (Ehrh.) Dumort. Wooded swamps with mosses.. 
Holden. 
50. Diplophylleia apiculata Evans. Shaded banks. Leicester, Oxford,. 
West Boylston. 
51. Scapania nemorosa (L.) Dumort. Found frequently. Shaded banks. 
Worcester. 
52. Scapania undulata (L.) Dumort. On stones in bed of brooks. Wor- 
cester, Leicester, Holden. 
53. Radula complanata (L.) Dumort. Frequently found. Rocks and 
trees, stones in bed of brook. Worcester, Oxford, Leicester. 
54. Porella pinnata L. On sticks and stones in brooks, usually submerged. 
Worcester, Leicester. 
55. Porella platyphylla (L.) Lindb. Fairly common. Bark of living trees, 
rocks, damp shaded soil. Worcester. 
56. Cololejeunea Biddlecomiae (Aust.) Evans. On stones in bed of brook. 
Leicester. 
57. Jubula pennsylvanica (Steph.) Evans. On wet rocks in brook. Wor- 
cester, Oxford. 
