FUSCUS. CONTEXT BROWN. 



took to be young were pale or hyaline. Some specimens have many spores. Still 

 I have made many examinations without finding spores, and it is rare to note a 

 species with colored spores that are ever scanty. The pore layers extend almost 

 to the crust, with very little context. I have one collection from the Philippines 

 with a distinct, dark purplish coat to the velutinate pore mouths. 



Fomes senex came originally to Montagne from Chile (Bertero). Afterwards 

 Montagne confused matters by so referring an entirely different plant from Cuba 

 (compare Fomes pseudosenex), which he sent to Fries. Berkeley had some of the 

 original, hence Fomes senex of Berkeley's determination was usually right. In 

 recent years Murrill discovered it was a new species, Fomes subextensus from the 

 Philippines. Bresadola calls it Fomes Korthalsii, and I have taken the types of 

 Fomes Hasskarlii at Leiden to be this plant. The whole history has been a bad 

 muss, which is a pity, since it is such a common and characteristic plant. 



SPECIMENS. Brazil, L. Damazio; Hawaii, C. N. Forbes; Samoa, C. G. Lloyd; Philippines, 

 E. D. Merrill; Ceylon, T. Fetch; India, H. C. Ryan; Java, Docteur van Leeuwen, J. P. Mous<et, 

 Dr. J. C. Konigsherger; Mauritius, P. Koenig; Madagascar, Henri Perrier de la Bathie; South Africa. 

 I. B. Pole Evans, W. T. Saxton. 



Compare Langloisii, Hasskarlii, subextensus. 



Fig. 599. 



Forms. 



FOMES HAWAIENSIS. Color 



bay, pore mouths 150 mic., otherwise 

 as Fomes senex. Surely only a form, 

 but of quite distinct color (bay) and 

 pores one-half larger. Based on a 

 collection from C. N. Forbes, Hawaii. 



FOMES VELUTINOSUS (Fig. 

 599). I have several times received 

 a small, thin plant with the main 

 characters of Fomes senex, but much 

 smaller, thinner, and with but one 

 layer of pores (Polyporus). I am not 

 sure it is a Fomes, as my collections 

 show no Fomes layers. Surface 

 smooth, sulcate, often with a banded 

 effect. Pore mouths darker and 

 strongly velutinate. 



SPECIMENS. Bengal, S. Hutchings; Japan, K. Makanishiki, Kazegoti Island; Madagascar, 

 Henri Perrier de la Bathie; India, Col. H. R. Kirtikar; Natal, Africa, A. J. T. Janse. 



FOMES PACHYPHLOEUS. Pileus ungulate, with a hard, 

 smooth, uneven brown or black crust. Often the crust is variegated 

 with darker zones. Context hard, medium brow r n (Sedan brown). 

 Pores minute, with indistinct pore layers. Setae short, with broad 

 bases. Spores rare, globose, 8 mic., pale colored. The tissue of the pore 

 walls and context is mostly of the usual ligneous hyphae, slender, 2-4 

 mic. thick, colored, but imbedded in this tissue, of much darker color 

 and running parallel with the pores, are prominent, deep chestnut- 

 colored, smooth, sharp setae 8-10 mic. thick, with sharp points. These 

 are quite conspicuous under the microscope and occur both in the 

 pore and context tissues. 



Fomes pachyphloeus was originally from Fidji, but is found frequently in 

 Africa and the East. I have not seen it from the American tropics. Sometimes it 



260 



