BADHAMIA.] 
PHYSARACE^, 
35 
- shape densely chai^ged with lime-granules, often confluent in the 
oentre, forming a pseudo-columella. Spores dark purple-brown, 
rough or reticulated with prominent and confluent warts, 10 to 
15 fj. diam.— Host., Mon., p. 145, flgs. 108, 109 (1875) ; Cooke, 
Myx. Brit., p. 27. Physarum lilacinuni Fr., Syst. Myc, iii., 
p. 141 (1829). Craterium lilacinuni Mass., Mon., p. 271. Diderma 
concinnum Berk. & Curt., in Grev., ii. (1873), p. 52. Physarum 
concinnum Mass., Mon., p. 308-. 
Plate v., A.- a. sporangia, x 20 (England) ; h. capillitium and spores 
of the same, x 280 ; c. spore, x 600 ; d. sporangium, showing a pseudo- 
columella, X 20 (Mecklenburg-Schvverin). 
The type of Diderma eoncinnum Berk. & Curt., in the Kew Herb., is 
a pale whitish form of this species with the characteristic spores and 
capillitium. 
Hab. On Sphagnum, twigs, etc., in marshy ground. — Pilmoor, Yorks 
(L:B.M.9) ; Scotland (Edin. Herb.) ; Germany (B. M. 488, and Strassb. 
Herb.) ; Philadelphia (L:B.M.9). 
9. B. rubiginosa Rost., Mon., App., p. 5, fig. 115 (1876). 
Plasmodium ? Sporangia obovoid stalked, 0 5 mm. broad, rufous, 
or purplish-brown, the upper part usually paler and breaking up 
in fragments; sporangium-wall purplish, membranous, more 
or less charged with granules of lime. Stalk cylindrical or 
widening at the base, usually about the length of the sporangium, 
smooth, purplish -brown, continued within the sporangium to more 
than half its height as a columella. Capillitium white or pale 
rufous, a rugged network usually densely charged with lime- 
granules, spreading from all parts of the columella to the 
sporangium-wall. Spores dark purplish-brown, minutely spinu- 
lose or verrucose, or reticulated with prominent and confluent 
warts, 11 to 15 ju, diam. — Cooke, Myx. Brit., p. 82; Macbride 
in Bull. Nat. Hist. Iowa, ii., p. 159. Physarum rubi<jinosum 
Chev., Fl. Par., p. 338 (1826). Scyjohium rubiginosum Rost., 
Mon., p. 148. Craterium rubiginosum Mass., Mon., p. 270. 
Bidymium Curtisii Berk., in Grev., ii. (1873), p. 65. Badhamia 
Curtisii Rost., Mon., App., p. 5. Craterium Curtisii Mass., 
Mon., p. 272. Craterium obovatum Peck, in Rep. New York 
Mus., xxvi., p. 75. 
a. genuina : spores minutely spinulose. 
(3. dictyospora : spores strongly warted or reticulated. — Bad- 
hamia dictyosjjora Rest., Mon., App., p. 4 ; Cooke, Myx. Biit., 
p. 82. Craterium dictyospermuin Mass., Mon., p. 270. 
Plate v., V}.—a. sporangia, x 20 (England) ; b. broken sporangium from 
a mounting in glycerine jelly, showing columella surrounded by cnpillitiuni, 
and the mottled sporangium- wall, x 50 ; c. capillitium and spores, x 280 ; 
d. spore of the same, x 600 ; c. spore, x 600 (Ueer Lsland, St. Lawrence) ; 
/. si)orc, X 600 (New .Jersey); g. spore, x 600 (Appin, Scotland: Rosta- 
finski's type of liis JJ. diotyoKjiora). 
Didymium Curtisii Berk, differs from the type of J3. ruhiglnosa only 
in being se-ssilo or shortly stalked ; in both British and American 
