•90 
ENDOSPOREiE. 
[DIACHiEA. 
Rost., Mon., App., p. 15. Didymium Zeylanicum Berk. & Br., 
in Linn. Joiirn., xiv., p. 84 ; Mass., Mon., p. 240. Chondrioderma 
Zeylanicum Host., Mon., App., p. 15. Chondrioderma Berkeley - 
anum Rost., Mon., App., p. 16 ; Mass., Mon., p. 214. Tricham- 
phora Fuckeliana Rost., in Fuckel, Symb. Myc, Nachtr. 2, p. 71 ; 
Mon., p. 138. Badhamia Fuckeliana Rost., Mon., App., p. 2 ; 
Mass., Mon., p. 321. Didymium australis Mass., Men., p. 237. 
Plate XXXV., B. — a. sporangia, x 20 ; J. capillitium, with fragment of 
sporangium- wall and spores, x 280 ; c. spore, x 600 (Australia). 
The fine specimen from Sumatra in the Leyden Herb., covering an 
area of six inches on a frond of Selaginella stipulata, a part of which, 
through the kindness of Dr. Boerlage, is in this collection (L:B.M.67), 
may be taken as a type of this interesting species. From tlie unique 
characters of the sporangium and capillitium, it deserves to retain the 
generic position assigned to it by Junghuhn in describing the original 
Java specimen. Examination of the scanty remains of that gathering 
at Strassburg and at Leyden, and of the types of Physaruru Muelleri 
Berk, from Queensland and Ceylon (K. 1433 and 1432), also of 
Didymium Zeylanicum Berk. & Br. from Ceylon (B. M. 576), and of 
Didymium australis Mass. from Brisbane (K. 1491), shows that they 
all possess the characters given above, and are consequently included 
under T. pezizoidea. The specimen marked Pliysarum macrocarjmm 
Ces., No. 1458, Fuckel F. Rhen. (B. M. 403), is a part of Rostafinski's 
type of Badhamia Fuckeliana Rost., of which a fine example is in 
Strassb. Herb. ; it is essentially identical with the Sumatra gathering of 
T. pezizoidea. The type of Chondrioderma Berkeleyanum Rost. from 
Tahiti in the Kew collection (K. 1207a), marked in pencil by Berkeley 
Trichamphora joezizoidea Jungh., differs from Fuckel's gathering only 
in the darker and more strongly spinose spores ; the number of spines 
on the hemisphere is the same in each ; in the Sumatra specimen the 
spores are intermediate in colour and in the strength of the spines, 
■while in the Brisbane specimen the spores are nearly smooth. This 
varying character is not sufficient to raise the Tahiti gathering to the 
rank of a distinct species. A fine growth from Borneo has dark 
spinose spores 15 diam. 
Hah. On dead wood, leaves, etc.— Germany (B. M. 403) ; Natal 
(K. 376) ; Ceylon (B. M. 576) ; Java (Strassb. Herb.) ; Sumatra 
(L:B.M.67) ; Borneo (L:B.M.67) ; Queensland (L:B.M.67) ; Tahiti 
(K. 1207). 
Genus 11.— DIACHJEA Fries, Syst. Orb. Veg., i., p. 143 
(1825). Sporangium- wall hyaline, iridescent, without deposits 
of lime. Stalk and columella charged with granules of lime. 
Capillitium a profuse network of purplish threads, without Hme- 
knots. 
KEY TO THE SPECIES OF DIACHM. 
Lime in stalk and columella white. 
Spores nearly smooth. 1. F>. elegans 
Spores tuberculated. 2. D. splendem 
Lime in stalk and columella orange. 3. D. Thomasii 
