144 ENDOSPORE.E. [CRIBRARIA. 



connected by very slender more or less parallel threads. Stalk 

 subulate, two to four times the height of the sporangium, dark 

 brown. Spores ochraceous, nearly smooth or faintly warted, 

 5 to 6 /a diam. Host., Mon., p. 237; Cooke, Myx. Brit., p. 59; 

 Mass., Mon., p. 59; Macbride, in Bull. Nat. Hist. Iowa, ii., 

 p. 119. Cribraria dictydioides Cooke & Balf., in Rav. Fung. 

 Amer., p. 475 ; Mass., Mon., p. 65. C. Balfourii de Bary, 

 in Herb. 



a. genuina : cup about one-third the height of the sporangium. 



(3. dictydioides : cup almost or quite obsolete ; the nodes in 

 the lower part of the net elongated and confluent, forming ribs 

 converging to the apex of the stalk. 



Plate LIV., B. a, b. sporangia after dispersion of spores, a. f/enwhia, 



x 20 ; c. part of net and cup of sporangium, x 180 (Borneo) ; ^.sporangium 



after dispersion of spores, (3. dictydioides^ x 20 (S. Carolina, U.S.A. : type 



of C. dictydioides Cooke & Balf.) ; e. spore and plasmodic granules, x GOO. 



The specimens in the Strassburg and Kew Herbaria (K. 963, 1673) 

 named Cribraria Balfourii de Bary, on Sphagnum from the hot 

 stoves of the Royal Botanic Gardens, Edinburgh, are small develop- 

 ments of /3. dictydioides. Nearly similar forms have been obtained in 

 orchid-houses at Lamberhurst, Kent. 



Halj. On dead wood. /3. Bristol (L:B.M.l 11 slide) ; |3. hot stove R. 

 Bot. Gardens, Edinburgh (L:B.M.lll) ; ft. Java (B. M. 1107); a. 

 Borneo (LrB.M.lll) ; a. and /3. Philadelphia (L:B.M.lll) ; a. S. 

 Carolina (B. M. 677) ; /3. S. Carolina (B. M. 680, 681, 940). 



9. C. tenella Schrad., Nov. Gen. PL, p. 6 (1797). This species 

 resembles C. intricate*/ in size, shape, colour, and spores. Cup 

 one-third the height of the sporangium, or more or less obsolete. 

 Net close, regular ; nodes numerous, dark brown, rounded, 

 rarely elongated, prominent, with few or no free rays, connected 

 by three to six very slender threads. Rost., Mon., p. 235 ; 

 Mass., Mon., p. 58. C. elata Mass., Mon., p. 61. 



Plate LIV., B. /. sporangium after dispersion of spores, x 20 ; g. part of 

 net of sporangium, x 180 (Ceylon: Eostafinski's type); k. part of net 

 and margin of cup, x 180 (Philadelphia, U.S.A.) ; -/.. spore and plasmodic 

 granules, x 600. 



Both C. tenella and C. intricata are abundant in the United States, 

 where frequent intermediate forms occur connecting them with 

 one another. The specimen figured from Ceylon (K. 1684), referred 

 to by Rostafiuski, Mon., App., p. 31, as a type of C. tenella, has 

 a small cup, rounded or elongated prominent nodes, with no free rays ; 

 it is similar to the specimens received from Dr. Rex from the United 

 States under that name. Mr. Massee has raised it to the rank of 

 a species as C. elata. 



Hab. On dead wood. Orchid house, Lamberhurst, Kent (L:B.M.112); 

 Ceylon (K. 1684); Philadelphia (L:B.M.112) ; N. Carolina 

 (L-.B.M.112). 



