794 Myxomycetae, Myxom^^cetacefe, Physarum. 



flavos connectentibus ; gleba brunnea; sporiB brunneo-violaceis v. 

 lilacinis, sublevibus, 6,5-10 ix. diam. 



Hah. ad ligna emortua iu Britannia, Suecia, Helvetia, Amer. 

 bor. — Yar. Raveneiii (Morg.) Torr. 1. c. Cytidium Ravenelii Morg. 

 Myx. Miami Yalley, p 82. — Nodulis calcareis flavis ; stipite fa- 

 soideo; sporis 6,5-7,5. — Ad ligna in Amer. bor. 



3. Piiysarum compactum (Wing.) List. Mycetozoa p. 44, t. 10, f. B, 699 

 Torrend Myxom. p. 191, t. YI, f. 8, Tilmadoche compacta Wing. 

 Proc. Philad. Acad. (1889) p. 48, Lepidoderma stellatum Massee, 

 Myxog. p. 262. — Plasmodio?; peridiis totis 1-2 mm. altis, gre- 

 gariis. globulosis v. infra applanatis, 0,5 mm. diam., rectis v. nu- 

 tantibus, albis v. griseo-brunneolis albo-maculatis, tunica membra- 

 nacea, glomerulis calcareis innatis numero^sis onusta, maturitate 



in 6-12 &egmenta petaloidea dehiscente; stipite albo v. albo-flavi- 

 do, subinde basi nigricante, 0,5-1,5 mm. alt., sursum tenuato, su- 

 perne granulis calcareis farcto, coiumella e grumo granulorum 

 calcareorum, supra apicem stipitis sito constante; floccis e grumo 

 radiantibus, incoloribus, copiosis, parce calcareo-nodulosis. nodulis 

 minutis fusoideis; gleba brunnea; sporis brunneo-violaceis, rai- 

 nute verrucosis, 7-8 ij,. diam. 



Hab. ad ligna putrida in Amer. bor. et centrali et Borneo. 



4. Physarum Betlieii Macbr. ap. Lister, Mycetoz. II ed. p. 57, t. 200. 599 

 (1911). — Plasmodio : peridiis stipitatis, subglobosis, infra umbilicatis 

 erectis v. inclinatis, 0,5-0,7 mm. diam., pallide sulphureis v. (ubi 

 calce expertibus) iridescenti-violaceis ; tunica membranacea granulis 

 calcareis sulphureis plus v. minus copiosis farcta; stipite firmo 

 atro-brunneo v. nigro, 0,1-0,5 mm. alto; columella nulla; capil- 

 litii floccis hyalinis, dense reticulatis, nodulis calcareis subinde ra- 

 mosis pallide sulphureis inspersis; sporis violaceo-brunneis, mi- 

 nute verruculosis, 9-10 ijl. diam. 



Hab. ad ligna putrescentia, Colorado Amer. bor. — Affine Phy- 

 saro viridi var. incano. 



5. Pliysarum psittacinum Ditm. — Syll. VII, p 341 — var. fulvum 600 

 List., Journ. of Bot. XLIV (1906) p. 228, Torr. Myx. p. 196. — 



A typo dignoscitur tantum stipite basique peridii fulvis, nec oequa- 

 liter aurantio-rubris. 



Ilab. ad truncos vetustos in Japonia. 



6. Physarum galbeum Wingate in Ell. et Ev. N. Am. Fgi. u. 2491, 600 

 Macbride Amer. Slime-Moulds p. 53, Torrend Myxom. p. 194. — 

 Ab affini Physaro flavicomo distinguitur peridiis aureo-flavis, gra- 



