| name |
Limacella macmurphyi |
| author |
Murrill. 1912a. Mycologia 4: 213. |
| name status |
insufficiently known |
| english name |
"McMurphy's Vanguard Limacella" |
| etymology |
genitive of a Latinized form of the collector's name; hence, "McMurphy's," "of McMurphy" |
| MycoBank nos. |
not available |
| GenBank nos. |
Due to delays in data processing at GenBank, some accession numbers may lead to unreleased (pending) pages.
These pages will eventually be made live, so try again later.
|
| holotypes |
NY |
| intro |
The following text may make multiple use of each data field.
The field may contain magenta text presenting data from a type study
and/or revision of other original material cited in the protolog of the present taxon.
Macroscopic descriptions in magenta are a combination of data from the protolog and
additional observations made on the exiccata during revision of the cited original
material.
The same field may also contain black text, which is data from a revision of the present
taxon (including non-type material and/or material not cited in the protolog).
Paragraphs of black text will be labeled if further subdivision of
this text is appropriate.
Olive text indicates a specimen that has not been
thoroughly examined (for example, for microscopic details) and marks other places in the text
where data is missing or uncertain.
The following material not directly from the protolog of the present taxon and not cited as the work of another researcher is based upon original research by R. E. Tulloss.
Macroscopic detail is from McMurphy's notes deposited with the collection—unless stated otherwise. Microscopic data from RET's study of type. |
| pileus |
protolog: 35 - 40 mm wide, pinkish cream, smooth; context white, unchanging; margin entire; gluten layer present (based on microscopic examination of pileus surface, below). |
| lamellae |
protolog: free, about 100,
many "rud."(?rudimentary) |
| stipe |
protolog: 40 - 60 × 5 - 10 mm, white, narrowing upward, nearly smooth, rounded at base (per sketch); context solid, white, unchanging, slightly fibrous; partial veil skirtlike, white, thin; gluten layer not described. |
| odor/taste |
protolog: Odor and taste both mealy. |
macrochemical
tests |
none recorded. |
| pileipellis |
not described in protolog.
type study of RET: absent. |
| pileus context |
not described. |
| lamella trama |
not described in protolog.
from type study of RET: poorly preserved; bilateral; with apparently broad central stratum. |
| subhymenium |
not described. |
| basidia |
not described in protolog.
type study of RET: 19 - 38 × 6.5 - 7.9 μm, dominantly 4- and infrequently 1- or 2-sterigmate, some appearing dextrinoid; clamps prominent and common. |
| gluten layer |
not described in protolog.
type study of RET: On pileus: as gelatinized remnants of gluten supported by turf of multiply branching filamentous undifferentiated hyphae; terminal cells cylindric, rounded at tip. with length = 25 - 48 μm, with max. width = 1.6 - 2.9 μm, with length/max.-width = 10.2 - 18.1, with basal septum of terminal cell, 1.1 - 2.2 μm wide; clamps not observable. |
| stipe context |
not described. |
| partial veil |
not described in protolog.
|
| lamella edge tissue |
not described in protolog.
type study of RET: fertile. |
| basidiospores |
type study of RET: [20/1/1] (3.5-) 4.5 - 5.5 (-6.0) × (3.0-) 3.4 - 4.3 (-4.5) μm, (L = 4.9 μm; W = 3.8 μm; Q = (1.12-) 1.13 - 1.44 (-1.56); Q = 1.30), hyaline, colorless, thin-walled, often smooth, inamyloid or (at times) appearing dextrinoid, occasionally with very fine, short echinulae, subglobose to broadly ellipsoid to ellipsoid, adaxially flattened; apiculus sublateral, cylindric; contents multiguttulate; white in deposit. [Note: Much of hymenium lacking mature basidia; spores possibly undersized.] |
| ecology |
protolog: Scattered. Among leaves under redwoods. |
| material examined |
protolog: U.S.A.: CALIFORNIA—San Mateo Co. - Searsville Lk., Lower Alambique Crk., 6.i.1903 J. L. W. McMurphy 36 (holotype, NY).
type study of RET: U.S.A.: CALIFORNIA—San Mateo Co. - Searsville Lk., Lower Alambique Crk., 6.i.1903 J. L. W. McMurphy 36 (holotype, NY). |
| discussion |
H. V. Smith (1945) proposed the current name to be a
taxonomic synonym of
L. solidipes
(Peck) H. V. Sm. The data she didn't have
from
L. macmurphyi was the form of the lamella
trama,
which RET found to be bilateral. Hence, the
data
from the present page improves somewhat the support
for
Smith's proposal. Since all the material
presently available to RET is quite old and in poor
condition, and since the holotypes of the two
mentioned
taxa were collected near opposite coasts of North
America, it seems best to await new, well-annotated
and
well-preserved collections.
Nevertheless, it seems reasonable to provisionally
assign L. macmurphyi to Limacella sect.
Amanitellae to maintain its supposed
association
with L. solidipes. Moreover,
the present
taxon seems very simiar to
L.
roseicremea Murrill and to
L.
sp-Burnett-5-xi-1994, both assignable to
sect.
Amanitellae. Even if L. solidipes
turns out to be distinct from L. mcmurphyi,
the latter could well be synonymous with L.
roseicremea.
There follows a comparison of sporographs based on
spore
measurements from type collections where such
exist:
|
| citations |
??Can HVS's mention of the present species be considered a revision??—R. E. Tulloss |
| editors |
RET |
|
Spore data sets and their composite