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Page number:15 
Remarks (public):This has slightly smaller spores than C. cibarius and shares the pinkish spore print with C. cinnabarinus which however has "strawberry pink" (Ridgway) pileus, and "pale ochraceous salmon" to "pale yellow orange" (Ridgway) spore print (my F 668, FH).
We have also collected (at the same stations but rarely, Singer B 10589, INPA, TENN) in Amazonia a yellow (color of C. cibarius) form which may not be conspecific. Here the pileus is "cadmium y" to 10L9, bleaching to 9D4 or 9E5 (Maerz & Paul), the stipe "peach blow" to "sunset", the veins "sugar cane" to 10G7, somewhat fleshier with slightly weaker odor, associated with Glycoxylon. We have no data on the spore print and spore size. It is difficult to separate from C. cibarius, except perhaps by smaller spores. C. cibarius Fr. sensu Heinemann may be the same form.
 
Description type:Non-original description 
Description:Cantharellus guyanensis Mont. Ann. Sc. Nat. Bot. ser. 4.1: 107. 1854.
Pileus salmon orange to orange red (Maerz & Paul: 1: H/J 11, "brigand", "pirate", sometimes "conch-shell" especially in center, also "bittersweet"), glabrous, not viscid, smooth, convex, mostly soon depressed in the center or becoming concave, more rarely somewhat umbonate, 14-90 mm broad. - Hymenophore venose, veins 1--2.5 mm broad, few or many forked, subclose, decurrent, concolorous with the pileus or stipe. Spore print between "flush" and "sundown" (11 B 6) M & P. - Stipe from 9 D 6 to "Morisco" or concolorous with the pileus, glabrous, smooth, solid, equal, more rarely attenuated towards the base, 30-54 x 3-11 mm; basal mycelium often scanty, pallid. - Context concolorous with the surfaces in the peripherical parts, otherwise white. Odor agreeable, rather strong, like C. odoratus. Taste almost mild to slightly peppery (like C. cibarius).
Spores 6-9 x 4-5.8 µm, mostly 7-8.3 x 4.7-5.2 µm, hyaline, smooth, ellipsoid, inamyloid, acyanophilous, thin-walled. Cystidia none. Hyphae with clamp connections. Covering layers of pileus and stipe scarcely differentiated.
On raw humus, sand, and very rotten wood or leaves, associated with the roots of Glycoxylon inophyllum and Aldina heterophylla forming ectomycorrhiza (a typical mantle and Hartig-net, white), possibly also with Psychotria and some Sapindaceae, common in campina and campinarana vegetation but not in igapó, usually singly or in pairs but normally common and abundant from the Guyanas to Amazonia, especially on white sand soils, fruiting in the rainy season.
 
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