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Literature:
 
Page number:97 
Description type:Non-original description 
Description: Ramaria fragillima (P. Henn.) Sacc. & Sydow sensu Corner, Ann. Bot. Mem. 1: 588, 1950. Fiche 2, pl. 7; Fig. 95.
Fruit bodies up to 6 cm high, up to 2 cm broad, arbuscular, branched in 3-4 ranks. Stipe 8-15 mm long, 2-4 mm thick, tapering somewhat downward, naked at base and there white where protected, upward uniformly brown ('buckthorn-brown"), terete to somewhat channelled, bruising brown then becoming brown-black; flesh white, solid. Branches curvedascending, 2 to several, terete, concolourous with stipe and bruising to same colours; axils lunate; internodes diminishing gradually but rapidly. Apices cusped to blunt, rusty orange ("ochraceous orange"). Taste bitter; odour none.
Tramal hyphae uninflated, clamped, adherent, parallel, sinuous, hyaline. Basidia 55-65 µm long, clavate, clamped, hyaline; sterigmata 4, stout, straight; contents refringent when immature, not so when mature.
Spores (Fig. 95) 12-15 x 4.7-6.8 µm (E = 2.21-2.85; Em = 2.60; Lm = 13.43 µm), elongate teardrop-shaped to paramecioid, often rather abruptly swollen distally, echinulate; wall up to 0.3 µm thick; contents sludgy to refringent in swollen portion, subhyaline proximally;
ornamentation of isolated conical spines up to 3 µm long, scattered over median spore surface, but sparsely over proximal and distal ends.
COMMENTARY: This is exactly the concept of Corner (1950), and the fruit bodies are very similar to his text fig. 258. Fruit bodies do not resemble those of Ramaria cokeri Pet., under which name I treated the taxon (Petersen 1981). Micromorphology, including spores, is similar, as is fruit body colour, including the orange apices, but fruit body stature is much smaller, arbuscular, slender-stiped, and therefore very different from that of R. cokeri.
As indicated previously (Petersen 1981), however, this name as originally proposed by Hennings (1899) is clouded. The type specimen is missing. Hennings' spore measurements were 7-8 x 4-5 µm, certainly not similar to the above, or close to those by Corner (1950: 9-16 x 4-7.5 µm). Van Overeem (1923a) may well have understood Hennings' sense (spores, 9-11 x 5-6 µm), but figured broadly ellipsoid spores like those of R. zippelii. Altogether, I can be relatively sure of Corner's sense, but not Hennings'.
 
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