144 ENDOSPOREiE. [CRIBRARIA. 



connected by very slender more or less parallel threads. Stalk 

 subulate, two to four times tiie beight of the sporangium, dark 

 brown. Spores ochraceous, nearly smooth or faihtly warted, 

 5 to 6 /A diam.— Eost., Mon., p. 237 ; Cooke, Myx. Brit., p. 59 ; 

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

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

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

 in Herb. 



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



p. 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, i. sporangia after dispersion of spores, a. genuina, 

 X 20 ; 0. part of net and cup of sporangium, x 180 (Borneo) ; d. 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 600. 



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

 named Crihraria 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. •. 



Hob. On dead wood.— j3. Bristol (L:B.M.lll sJjde) ; 0. hot stove R. 

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

 Borneo (L:B.M.lll) ; a. and (3. Philadelphia (L:B.M.H1) ; o. S. 

 Carohna (B. M. 677) ; 0. S. Carolina (B. M. 680, 681, 940). 



9. C. tenella Schrady^'lSrov. Gen. PI., p. 6 (1797). This species 

 resembles G. intricata in size, shape, colour, and spores. Cup 

 one-third tlie 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. — Eost., Mon., p. 235 ; 

 Mass., Mon., p. 58. G. 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); 7t. part of net 

 and margin of cup, x 180 (Philadelphia, U.S.A.) ; i. 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 Rostafinski, 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. 



Hah. 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). 



