148 Rhodora | [JULY 
considered an esorediate plant. That condition, however, may prove 
to be not uncommon in different parts of its range as is the case with 
Cl. sylvatica (L.) Harm. which was likewise looked upon as an esoredi- 
ate species until Sandstede found it in Europe in a sorediate state 
(m. sorediata Sandst.) and which occurs also in the Buzzards Bay 
region. 
The following plants were also reported. All are well known in 
Europe but are not mentioned in New England lists. 
6. CLADONIA STREPSILIS (Ach.) Wainio, Acta Soc. pro Fauna et 
Flora Fennica 10: 403. 1894, often cited as Mon. Clad. 2: 403. 1894. 
On sandy or gravelly loam; in old fields, upland woods and roadsides. 
The species is abundant in Plymouth County and even more so in 
parts of Norfolk County, as at Stoughton where it often spreads 
over old upland pastures in dense colonies. The writer collected 
it in June, 1923, from near the summit of Mount Wachusett. It 
probably has a wide distribution but seems to be little known in this 
country. Willey sent it to Wainio from New Bedford as “Cl. alci- 
cornis." (l. c. 408) and G. K. Merrill (Bryologist 12: 93. 1909) states 
that it “has by many authors been referred to Cl. cariosa.” It is 
stouter than that species and the primary squamules are coarser, 
often much elongated. A greenish or bluish-green reaction to chloride 
of lime is unique among Cladonia species. The specimens sent appear 
to have been f. glabrata Wain. (podetia esquamulose). Locally there 
is also m. corraloidea Wain. (podetia squamulose). 
7. CLADONIA PITYREA (Floerk.) Fr., var. Zwackurn Wainio, f. 
SUBACUTA Wainio, Acta Soc. pro Fauna et Flora Fennica 10: 355. 
1894, often cited as Mon. Clad. 2: 355. 1894. On tree bases, decayed 
wood, often among mosses in moist places. Common. This form has 
the podetia decorticate, granulose, esquamulose and without cups. 
Recorded by Fink from Minnesota (Lichens of Minnesota. Contr. 
Nat. Herb. 14: 129. 1910). 
m. HOLOLEPIS (Floerk.) Wainio l. c. 355. In similar situations as 
f. subacuta but less common. Apparently not before recorded from 
North America. The plant differs from f. subacuta in having the 
podetia more or less squamulose and with cups. Tuckerman does not 
mention Cl. pityrea but according to Wainio (l. c. 363) Cl. squamosa, 
Hoffm., f. botryoides Tuckerman, Syn. 1: 246. 1882, belongs with the 
present species. 
ONSET, MASSACHUSETTS. 
