Fungous Flora of the Soil 485 



not as good growth as in Raulin's fluid, solution becomes yellow. Lac- 

 tose 3 per cent, slight growth, no coloration of media. Lactic acid 9 per 

 cent, very slight growth. Glycerin 3 per cent, fair growth, no coloration 

 in fluid. 



Penicillium geophilum Oud., Arch. Neerl. Sci. Nat. ser. 2, 7: 288. pi. 

 25, figs- 1-5- 1902; Nederl. Kruidk. Arch. ser. 3, 2: 907. 1903. Lindau, 

 Rab. Krypt. Flora Abt. 8, i: 161. 1904-1907. 



Colonies orbicular, zonate; zones at first alternating light and dark 

 green, later changing to white and bright green; vegetative hyphas creep- 

 ing, branched, septate, hyaline, 4-8^1 thick; conidiophores erect, to 360/1 

 high by 6/i thick, hyaline, remotely septate, at the summit with a verticil 

 of usually 9 branches; branches lageniform, swollen at the tip, occasionally 

 curved, 30;U long, carrying very long conidial chains; conidia globose, 

 bright green but appearing almost hyaline, smooth, 3-4^ in diameter. 



Hab. Humous soil from woods called Spanderswoud near Bussum, 

 Holland, March, 1901, Koning. 



Penicillium desciscens Oud., Arch. Neerl. Sci. Nat. ser. 2, 7: 288. pi. 

 24, figs. i-j. 1902; Nederl. Kruidk. Arch. ser. 3, 2: 907. 1903. Lindau, 

 Rab. Krypt. Flora Abt. 8, i: 162. 1904-1907. 



Colonies green-gray to blue-green, becoming zonate with 

 age; mycelium branched, septate, hyaline, with age becom- 

 ing guttulate, 2-4M thick; conidiophores 80-500^1 high, 

 hyaline, septate, generally with one or two side branches, 

 with four to six 9-12/x-long primary branches at the apex; 

 each primary branch producing 4-6 basidia, which are 6-9^1 

 long ; conidia ellipsoidal to globose, persisting in long chains -pic i ^ i — 

 in liquid mounts, 2.5-3.5JU in diameter. Penicillium 



Hab. Isolated from humous soil from Spanderswoud Oud A 

 near Bussum, Holland, March, 1901, Koning; from oat conidiopJwre 

 field near Cornell University, Ithaca, N. Y., July and ^rucTi'fica- 

 August, 1910, by the writer. tion,x6o;B, 



While the fungus does not agree in all particulars mlfmcHfila- 

 with the original description of Oudemans, still in all lion, x 533.3; 

 probability our form is identical with his. ' ^ 



Writer's culture data. Cultures retained for jo days: 



On 15 per cent gelatin in distilled water, and on potato decoction plus 

 1.5 per cent agar, colonies when young green-gray becoming brownish 

 and zonate with age. Reverse of colonies yellowish green on 15 per cent 

 gelatin in distilled water plus 3 per cent cane sugar and on potato decoc- 

 tion plus 3 per cent cane sugar, plus i per cent agar, at first the colonies 

 are blue-green, fading somewhat with age. Reverse of colonies yellowish 

 green to red. Odor none. 



