S32^ Agricultural Experiment Station, Ithaca, N. Y. 



probably, wbere there is still a less quantity of moisture, the tube 

 from the germinating spore is directed upward or away from the 

 host and becomes a sporangium with a very short stalk or only the 

 short narrowed end of the sporangium which serves as a stalk. 

 Before this conidium is ejected from this secondary sporangium if 

 it be immersed in water, the protoplasm will grow out into a long 

 slender germ tube. If it were only partially immersed it might as 

 in the case of the primary sporangium noted develop a new sporan- 

 gium. In the case of the primary sporangium which was immersed 

 in water and which developed a new sporangium at the base of the 

 old one, as described above, the base of the stalk was not entirely 

 immersed. 



As stated above the primary sporangia in the cases observed 

 developed from some of the larger of the external cells of the cluster. 

 In one case this took place while the inner cells were developing 

 resting spores (Fig. 34). It may be possible that the sporangia are 

 always developed from somewhat larger and richer cells of the 

 periphery but more likely others of the cells can develop sporangia 

 when the conditions of the environment, which have not all been 

 determined, are such as to produce this tendency to fruit in the 

 organism. 



I have found the fungus in the prothallia of Aspidium {Cyrtomi- 

 um) falcatum, Pteris argyria and Pt. cretica. 



It was first described by Lohde^^ and was later more thoroughly 

 studied by Leitgeb^^ who grew it in a large number of fern 

 prothallia. 



A IS^Ew Cutting Bed Fungus. 



Volutella leucotricha Atkinson. 



April 10th (1894) two cuttings, in the botanical conservatory, of 

 carnations which were damping off were called to my attention. 

 These were placed in a moist chamber expecting to obtain the sterile 

 fugus or an Artotrogtis, Two days later, 12th, the stems were well 

 covered with a fungus which formed elevated stromata, whitish in 

 color or with a slight tinge of flesh color. With a hand glass the 

 stroma was seen to be surrounded by several setae, which, however, 



27Ueber einige neue parasitische Pilze. Tagebl. d. 47 Vers, deutscher Naturf. 

 n. Aertze, 203, 1874. 



28 Completoria compleus Lohde, eiu iu Farnprotballien schmarotzender Pilz. 

 Sitz'ungsb. d. math, naturw. Klasse d. Akad. d. Wiss. LXXXIV, I, 288, 1881. 



