This seems to be the only mesopodial 

 Laschia in the American tropics. It was named 

 Polyporus gracilis by Klotzsch years ago, and 

 as such appears in our Stipitate Polyporoids. 

 Patouillard published it as Laschia clypeata, 

 and only recently Murrill discovered it to be 

 a "new species," and called it Polyporus 

 Cowellii. It is not rare in the American 

 tropics. Rick has collected and distributed 

 it. His specimens show some variations in size 

 of pores, some being larger pored than others. 



LASCHIA (?) SILVESTRIS. Holt^tian from Java gives 

 a figure that is probably a Laschia, and prapltbly Laschia caespitosa, 

 but he discovers it to be a "new genus/T^ Van Romburghia," and 

 does not give the essential fact, the nature of the tissue, to decide 

 whether it belongs to Laschia or not-/^om his imperfect record the 

 classification of the plant is onlyywguess, but from his figure the 

 plant is probably Laschia caespitcJ^t. 



Fig 923. 



THE EMBRYOLOGY OF LYSURUS MOKUSIN 



Phalloids could be divided into two families or "natural orders" 

 on the attachment of the young plant to the volva. We considered 

 this in detail in Myc. Notes, page 512, in connection with young 

 Lysurus Gardneri (there called Lysurus borealis). We have received 

 from L. C. C. Krieger some preserved eggs of Lysurus Mokusin, an 

 introduced phalloid that occurs in the hot houses at Chico, Cal. 

 (Cfr. Myc. Notes, page 586). We present a figure (924) enlarged, 



of a transverse section 

 through an egg, showing 

 the gleba entirely surround- 

 ing the arms, excepting, of 

 course, when the arms are 

 joined to the volva by the 

 umbilical plate. As the em- 

 bryonic structure of Ly- 

 surus Mokusin is exactly the 

 same as that of Lysurus 

 Gardneri, considered in de- 

 tail in Mycological Notes, 

 page 512, we will not en- 

 large on it here. A figure 

 purporting to be a section 

 through an egg of Lysurus 

 Mokusin was given in Jour, 

 de Bot., 1890, page 257, but 

 it impresses me as having 

 been an inaccurate conception and presentation of the subject. 



There are a number of phalloids whose relations are not known. 

 We would be most glad to receive the eggs of the following genera: 

 Aseroe, Anthurus, Pseudocolus, Colus, and Kalchbrenneri. These 

 five are the only genera in which the embryonic relations are not 

 known, at least by analogy. We infer that the last three will be 



647 



Fig. 924. 



