130 
ENDOSPOREvE. 
[lampuobekma. 
y. Carestiae : sporangia subovoid ; stalk short, stout ; capilli- 
tium dense, dark violet-brown; spores 8 to 15 diam., nearly 
smooth or spinose. 
Plate XLIX., A. — a. sporangia, a. qenninum., x 3J ; h. sporangia, x 20 ; 
c. capillitium, x 80 ; cL. spore, x 600 (England) ; e. small sporangia, x 3i 
(United States) ; /. capillitium, /3. Sautevi, x 80 ; r/. spore of same, x 600 
(Tyrol : Eostafinski's type of L. Sautcri) ; h. sporangia, y. Carestice, x 3J ; 
i. capillitium, x 80 ; j. spore of same, x 600 (Italy : type of Stemonitis 
CaresticB Cesati) ; U. spore, x 600 (Jura Mts. : Fuckel, Fung. Rhen., 1447, 
one of Eostafinski's types of L. arcyrioides). 
Plate XLIX., B. — a. sporangia, type of Stemonitis areyrioides Somm., 
X 20 ; J. columella and capillitium, x 50 ; c. capillitium and spores, 
X 280 ; d. spore, x 600 (Norway). 
The three varieties given above are well-marked centres, round 
which intermediate forms group themselves, and are essentially repre- 
sented under their respective names by specimens in the Strassb. 
Herb.; but neither the size of the spores, the colour of the capillitium, 
nor the shape of the sporangia can be taken as giving constant specific 
characters. In some gatherings with dark and coarse capillitium the 
spores measure 9 fj. diam., in others 11 to 14 /x diam. ; they are either 
minutely or strongly spinulose. The original gathering on which 
Sommerfelt founded his S. areyrioides, of which, through the courtesy 
of Prof. Blytt of Christiania, a mounting is in the Brit. Mus. Coll., has 
globose sporangia, with brown capillitium and nearly smooth spores 
8 to 9 /ix diam. The measurement " 12 5 to 16 5 /x " given by Rosta- 
finski, and repeated in other works, is erroneous, but is corrected by 
Prof. Blytt, I.e. It is a form of a. genuinum with dense capillitium. 
L. Sauteri Rost. has the same form of sporangium and brown capilU- 
tium as S. areyrioides Somm., but has spinulose spores 11 to 14 /z diam.; 
it is the type of (3. In Lyme Regis gatherings with pale, minutely 
spinulose spores, 8 to 10 /x diam., the capillitium is either almost 
colourless and flaccid, or brown and rigid, sometimes varying in 
sporangia on the same leaf. The characters on which specific differ- 
ences can be based being so unstable, it appears reasonable to consider 
the three forms as varieties of one species. Lamproderma rohusta 
Ellis & Everh., No. 39, N. Amer. Fun., as represented by the 
specimen received by Mr. Massee from Mr. Wingate, is jS, with 
dark, strongly spinulose spores 11 to 13 diam.; it is almost identical 
with the type of L. Saideri in the Strassb. Herb. The type of 
Tihnadoche Berheleyi Mass., from the United States (K. 1563a), 
appears to be an immature specimen of L. violaeeum. 
Hah. On dead wood, leaves, etc. — a. Twycross, Leicester (B. M. 203b); 
Brockley, Somerset (B. M. 202) ; a, j3. Lyme Regis, Dorset (L:B.M.99) ; 
a. France (Paris Herb.) ; a, /3, y. Germany (Strassb. Herb.) ; /3, y. Ger- 
many (B. M. 607) ; a. Norway (L:B.M.99) ; y. Switzerland (B. M. 608); 
y. Italy (B. M. 606) ; a. Mass., U.S.A (L:B.M.99) ; /3. Philadelphia 
(L:B.M.99) ; y. Iowa, Ohio (L:B.M.99). 
species not met with in the quoted collections. 
6. L, Schimperi Rost., Mon., p. 203. Sporangia globose, irides- 
cent, greenish-black or reddish. Stalk black, shining, rigid, 
subulate, 3 to 4 mm. liigh, O'G mm. thick below, 0-15 mm. above. 
Columella obovate, hardly attaining half the lieight of the 
sporangium. Capillitium dusky, as in L. 2)hi/sar aides. Spores 
dull violet, delicately wartcd, 10 to 11 /a diam. Diflering from 
