I'KNh ll.Lir.M KOSEUM. 



49 



This form i- certainly closely related to P. brevicaul by its physiological reactions 

 and its general morphology. It was found in one case among the exsiccati in the 

 Earvard herbarium under the name of Monilia Candida. There is, however, ao possi- 

 bility of confusing this form with thai species as undersl 1 and described by more 



recenl students, such as Hansen and Jorgenson. 



Cl I n a \i DATA. 



Exactly as in /'. bn i icauk , excepl for the following: 

 Conidia Bmooth, somewhal smaller. 

 < !olor more Dearly white. 



Sclerotia black, found in very old potato-plug cultures or in agar cultures which 

 lia\ e grofl n several weeks or monl h 

 Cohn'e solution failed to produce a characteristic colony. 



PENICILLIUM ROSEUM Link I ? . 



Colonies on milk-sugar gelatin or potato agar white to pink or salmon in fruiting 

 areas, loose floccose with simple hyphse and ropesof hyphae, producing dense irregular 



..;V.;S?f?..fi~'.-.';j.i.' 



Fig. 15.— PenkUUum roaeum Link (?): o, 6, c, branching of conldlal fructlflcation, showing few cells In 

 ch verticil I < 900); d, e, conidiiferous cell and conidia ( x 900); g, h, j,k, sketches of ripe fructifications 

 showing agglutination of conidia Into slin < 1 10). 



pinkish masses or Bclerotia up to I nun. or more in diameter in old culture. Coni- 

 diophoree borne as perpendicular branches of aerial h\ phse or ropes of h\ phas, 15 L25/i 

 Conidial fructification up to L40/i in length, once or twice irregularly alternately or 

 verticillately branched, with conidiiferous cells van ingfrom 12 by 2 :\n in the verticils 

 of •") or less to 17 by 2.::» when solitary, bearing conidia which becoi regated into 



gelati nuns halls or masses. Conidia colorless (pink or rosy in mass), elliptical, 5 7 by 

 3 •">,'. slightly apiculate, Bmooth, appearing delicately granular within. Colonies 

 liquefy gelatin cultures rapidlj and give an alkaline reaction to litmus media. 

 Brought from Krai, in Prague, Bohemia. 



8108— Bull. 118—10 4 



