Monographs Details: Phellinus pachyphloeus (Pat.) Pat.
Authority: Fidalgo, Oswaldo & Fidalgo, Maria E. 1968. Polyporaceae from Venezuela. I. Mem. New York Bot. Gard. 17 (2): 1--34.
Family:Hymenochaetaceae
Description:Distribution and Ecology - MACROSCOPIC CHARACTERS. sporophore: applanate to ungulate, very rarely effused-reflexed in young specimens, pileus : dimidiate, applanate, subungulate to ungulate, sessile, usually thick, mostly up to 25 cm long, 45 cm wide and 10 cm thick, abhymenial surface: horny-encrusted, sulcate, at times rugulose, somewhat velutinate in young specimens, smooth but often cracking irregularly on drying, dark brown, MP-8H8 (Cordovan) to MP-8J10 (Falcon). margin: very thick, entire, obtuse, frequently concolorous with the abhymenial surface. context: woody, firm, 0.5-2 cm thick, fulvous, i.e., medium brown, around MP-15A12 (Burnt Umber), showing white mycelial strands, radially oriented and more concentrated at its medium portion, as well as, black lines and limited by a black crust at the surface, 0.5-2 mm thick; with KOH the trama turns black. tubes: in several distinct to indistinct layers, up to 4.5 mm thick, usually concolor with the context or, at times, somewhat darker, MP-15E11 (New Bronze). poroid surface: pale cinnammon-fawn or near to MP-15C9 (Teakwood); pores small to minute, regular, circular, 8-10 per mm, 75-100 µ diam; dissepiments entire, acute to obtuse, 35-55 µ thick. MICROSCOPIC CHARACTERS. surface: represented by a dimitic crustiform palisadoderm with the tips of the generative hyphae subhyaline; generative hyphae agglutinated, at times collapsed; setal skeletal hyphae few; encrustation beginning from a region deeply immersed in the middle of the context near the margin and at this point, at the surface, presenting loose hyphae with a velutinate aspect; usually, 5-10 mm from the margin, this encrusted layer emerging to the surface forming the crustiform palisadoderm, visible under unaided eye as a measurable crust up to 2 mm thick, context: hyphal system dimitic; generative hyphae subhyaline to yellowish, thin-walled, branched, mostly collapsed, with simple crosswalls, 1.5-3(4.5) µ diam; setal skeletal hyphae ju-esent, abundant, very dark, ferruginous, very thick-walled to almost solid, without crosswalls, 8-32 µ diam and up to 850 µ long, ending by a sharp tip, at times with a narrow, pale yellow to somewhat ferruginous prolonged base, tortuous, thick-walled to solid, 4-7 µ diam and also at times near the basal portion, producing a short lateral projection, dissepiments: setal skeletal hyphae dark ferruginous, acute, up to lip diam, and up to 300 µ long, abundant at any part of the dissepiment and frequently projecting in the interior of tlie tubes, hymenium: hyiihal pegs and cystidia not seen; hymenial setae sharp-pointed with straight tips, subulate, ferruginous, 5-12 µ diam at the base and projecting beyond the hymenium 7.5-27 µ, its complete size being 20-32 X 5-12 µ; basidia clavate, hyaline, 4-sterigmate, 9-11 X 4-6 µ; basidiospores subglobose, thin-walled, smooth, hyaline, darkening to yellow with age, uniguttulate, nonamyloid, (4.5-)5-6 x 4-5.5 µ,

Discussion:

Figs. 9-12, 17-24, 25-32.

Polyporus pachyphloeus Pat., Jour. Bot. (Paris) 3(15): 257. 1889; Reinking, Philip. Jour. Sci. 17(4): 368. 1920.

Fomes pachyphloeus (Pat.) Bres., Bull. Soc. Mycol. Fr. 6(1): 41-42, n. 33. 1890; Sacc, Syll. Fung. 9: 174. 1891; Lloyd, Mycol. AVrit. 3(Polvp. Issue 3): 34-36. 1910, 3(Lett. 33): 3. 1911; Bres., Hedwigia 53(1): 59. 1912; Lloyd, Mycol. Writ. 4(Lett. 48): 8. 1913; Graff, Phihp. Jour. Sci. 9(3): 237-238. 1914; Bres. & Svd., Phihp. Jour. Sci. 9(4): 347. 1914; AVakef., K e w Buh. Misc. Inf. 1914: 256-257. 1914; Llovd, Mycol. Writ. 4(Syn. Gen. Fomes): 260-261. 1915; Wakef., Kew Bull. Misc. Inf. 1917(3): 106. 1917; Reinking, Philip. Jour. Sci. 16(2): 171. 1920; Llovd, Mycol. Writ. 7(Mycol. Not. 67): 1164, note 1118. 1922; Parks, Univ. Cahf. Publ. Bot. 12: 57. 1926; Humphrey & Leus, Phihp. Jour. Sci. 47(4): 535-547. 1932; Corner, Gard. Bull. Straits Settlem. 5(12): 345-348. 1932; Brit. Mycol. Soc. Trans. 17(1-2): 51. 1932; Bose, Ann. Mycol. 35(2): 127-128. 1937; Teodoro, Enum. Philip. Fung. 304. 1937; Mendoza, Phihp. Jour. Sci. 65(1-2): 95. 1938; Simmons, Rep. Dep. Agr. Queensland 1938-1939: 25-28. 1939; Boedijn, Bull. Jard. Bot. Buitenzorg III. 16(4): 391. 1940; Wiehe Mycol. Pap. Commonw. Mycol. Inst. 24: 28. 1928; Cunningham, Bull. Dep. Sci Industr. Res. 79: 5-6. 1948; Roger, Phytopath. Pays Chauds 1: 1037, 1041. 1951 Ahmed, Pakistan Jour. For. 2: 102. 1952; Singh, Singh & Bakshi, Indian For. 87(4) 248. 1961.

Fomes pachyphloeus (Pat.) Bres. var stipitatus Bres., Ann. Mycol. 5(3): 238. 1907. Type from Java, Indonesia.

Fomes pachyphloeus (Pat.) Bres. var inermis Bres., Hedwigia 56(4): 294. 1915. Type from Pohllo I., Phihppine Is., B. S. 10526.

Fomes pachyphloeus (Pat.) Bres. var hispidus Corner, Gard. Bull. Straits Settlem. 5(12): 347-348. 1932. Type from Jelehe, Negri Sembilan, Malayan Federation, Corner, Sing. Field24500 (BPI).

Scindalma pachyphloeum (Pat.) Kuntze, Rev. Gen. Pl. 3(3): 519. 1898.

Cryptoderma pachyphloeum (Pat.) Imaz., Bull. Gov. For. Exp. Sta. 57: 101-102. 1952.

Elfvingia elmeri Murr., Bull. Torrey Club 34(9): 476. 1907, 35(8): 409. 1908. Type from Mt. Mariveles, Bataan Prov., Luzon I., Philippine Is., Elmer 6961 (NY).

Ganoderma elmeri (Murr.) Sacc. & Trott. in Sacc, S.vll. Fung. 21: 295. 1912.

Fomes elmeri (Murr.) Lloyd, Mycol. Writ. 4(Syn. Gen. Fomes): 279. 1915; Bose, Rev. Path. Veg. Ent. Agr. 11(2): 137. 1924.

Fomes melanodermus (Pat.) Sacc. & Syd. var tomentosus Bres., Ann. Mycol. 10(5): 497. 1912; Lowe, Mycologia 44(2): 233. 1952. Type from Buitenzorg, Java, Indonesia (S. BPI).

Type. Lectotype selected as being the specimen from Fiji Is., collected by Filhol in 1875. According to Patouillard (1889: 257) this specimen is at PC; merotypes in Patouillard's coll. at F H and Lloyd 39014 at BPI; paratype at NY and BPI. The piece in Patouillard's collection bears the data "Filhol, 1874." Although the date is different, it surely belongs to the original collection.

Type Locality. Patouillard's (1889) description was based on two collections, one from Fiji Is. and the other from Cameroon. No type was selected. Humphrey and Leus (1932: 585) have indicated that it was originally described from Fiji Is. and Cunningham (1948: 5) estabhshed clearly this place as the type locality.

Basionym. Polyporus pachyphloeus Pat., 1889.

Illustrations. Bres., Bull. Soc. Mycol. Fr. 6(1) : tab. VI, pl. VIII. 1890; Lloyd, Mycol. AVrit. 3(Polyp. Issue 3): figs. 359, 361. 1910, 4(Syn. Gen. Fomes): fig. 600. 1915; Humphrey & Leus, Philip. Jour. Sci. 47(4): pl. 1, figs. 1-10; pl. 2, figs. 1-10; pl. 3, figs. 1-16; pl. 4, figs. 1-5; pl 5, figs. 1-6; pl. 6, figs. 1-11; pl. 7, figs. 1-7; pl. 9, figs. 6-8; pl. 10, figs. 1-6. 1932; Corner, Gard. Bull. Straits Settlem. 5(12): text-figs. Ic, 2, 5a, b, g, h, o, 6c, 8. 1932; Mendoza, Philip. Jour. Sci. 65 (1-2): pl. 58, fig. 1. 1938; Cunningham, Bull. Dep. Sci. Industr. Res. 79: pl. 1, fig. 2. 1948; Imaz., Bull. Gov. For. Exp. Sta. 57: text-fig. 2. 1952.