The cap of Amanita tjibodensis is 60 - 130 mm wide, convex, white, slightly viscid, without volval remnants or sometimes covered with a few large, white patches. The flesh is 4 - 8 mm thick over the stem and rapidly thins near the margin.<
The gills are free, pale, close to cartridge buff, 5 - 10 mm broad at the midpoint. Short gills are not described.
The stem is 100 - 200 × 12 - 25 mm, white, solid at first, becoming hollow in age, barely narrowing upward, with a bulbous base, 25 - 45 mm wide. The ring disappears with age. The stem is decorated with small appressed scales, rapidly becoming smooth. The bulb bares a limbate volva which is not otherwise distinguished from the bulb.
The spores measure 6 - 9 µm in diameter and will probably not prove to be perfectly spherical and are amyloid. Clamps are probably absent at base of basidia.
This species was originally described from Java and is not widely understood.
As a white species of section Phalloideae, it should be expected to be poisonous.
We are familiar with this species only from the original description and are very interested in learning more. Will documented material from Java that conforms with this description would be very welcome.—R. E. Tulloss and L. Possiel
Boedijn. 1951. Sydowia 5: 325, fig. 5(2).
"Boedijn's Javan Death Cap"
Tjiboda, place name on the island of Java in the Dutch colonial period + -ensis, "located in"
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BO?? [no holotype designated; 2 collections cited in protolog; could not be found in 1996 per Z. L. Yang (pers. comm.)]
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The following material is based on the protolog of the present species unless otherwise noted.
from protolog: 60 - 130 mm wide, white, convex, slightly viscid; context white, 4 - 8 mm thick above stipe, rapidly thinning near margin; margin not described; universal veil absent or as few large patches.
from protolog: free, density not reported, pale, ca. Cartridge Buff, 5 - 10 mm broad; lamellulae not described.
from protolog: 10 - 20 × 12 - 25 mm, white, barely attenuate near apex; context solid, becoming hollow with age; bulb 25 - 40 mm wide; partial veil fugacious; universal veil as limbate volva on upper bulb and as covering of small adpressed scales on stipe (these detersile and rapidly lost).
from protolog: inflated cells globose to subglobose, 12 - 39 μm long.
from protolog: [-/-/-] 6 - 9 × 6 - 9 μm, (est. Q = 1.0 - 1.10), globose to subglobose, most common dimensions 7 - 8 μm long. [Note: Reaction to Melzer's Reagent not reported. With only one dimension, a sporograph cannot be generated. Hence, we made a conservative approximation of the range of Q and assumed identical ranges for width and length in order to generate an approximation of a sporograph.—ed.]
from protolog: INDONESIA: JAVA—Tjibodas, n.d. Bruggeman s.n. (syntype, ?BO, not found in BO per ZLY on 1996 visit), 13.vi.1940 Toxopeus s.n. (syntype, ?BO, not found in BO per ZLY on 1996 visit).
No discussion was provided in the protolog.
The proper placement of this taxon seems open to question. If the stipe is truly exannulate, then placement in sect. Phalloideae seems unusual.
The inability to locate either of the potential syntypes leads us to treat the species as insufficiently known. This situation could be rectified if the syntypes are found and/or if the species were to be recollected and recognized with confidence.
—R. E. Tulloss
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