A Monograph of the Lichen Genus Parmelina Hale - Smithsonian ...

36 SMITHSONIAN CONTRIBUTIONS TO BOTANY
24. Pamtelina lindmanii
FIGURE 16f
Parmelina lindmanii (Lynge) Hale, 1974:483.
Parrnelia lindrnanii Lynge, 1914:74 [type collection: Porto
Alegre, Rio Grande do Sul, Brazil, Maime 450 (S, lecto-
type)l.
Parmelia tiliacea var. sulphurosa f. asperata Miiller Argoviensis,
1883:46 [type collection: Argentina, Balansa 5 (G,
lectotype)].
DESCRIPTION.- Thallus adnate on bark, pale buff
to yellowish mineral gray, 5-8 cm broad; lobes subirregular,
apically rotund, 3-5 mm wide, the marginal
cilia mostly in lobe axils, less than 0.5 mm
long; upper surface plane to rugose with age, shiny,
moderately to densely isidiate, the isidia cylindrical,
unbranched, to 0.3 mm high; medulla uniformly
pale sulfur-yellow tinged with orange; lower surface
black except for a narrow marginal brown
zone, moderately rhizinate, the rhizines black, simple.
Apothecia rare, sessile, 2-5 mm in diameter;
spores 8,6-10 X 9-14 pm.
CHExmTRY.-Cortex K + yellow (atranorin);
medulla more intensely yellow with K and C, P-
(probably secalonic acid A and unidentified
pigments).
DISTRIBUTION.-RleXiCO and South America.
REhlARKS.-This corticolous lichen is character-
ized by the pale yellow-orange medulla and the
isidia. It is probably the isidiate morph of the
Mexican endemic P. immiscens. When I first began
study of Pal-nzelia, I confused Pal-melina lindmanii
and Pal-melia endosulphur-ea ( = Parmotl-ema endo-
sulphur-eum (Hillmann) Hale) (Hale, 1960:20). Both
species have a yellow-orange medulla and isidia, but
P. lindmanii has more adnate lobes, cilia in the
axils, and no gyrophoric acid. Both species lack
terpenes.
SPECIMENS Ex.4JrINEo.-Mexico: Queretaro, Nakanishi 257
(US); Tamaulipas, Nakanishi 106 (US): \'era Cruz, Hale
19389, 19685. Colombia: Antioquia, Nee and Mori 4238 (US).
Venezuela: Merida, Rodrigues 168 (US). Brazil: Rio Grande
do Sul, Lima 3 (US). Paragua:; Caacupe, Balansa (G, H).
Uruguay: Durazno, Osorio 2772 (DUKE, UPS): Lavalleja,
Osorio 3822 (MVM, US): Paysandu, Lamb (BM, H); Soriano,
Rosengurtt (H); Trinidad, Osorio 3603 (LD). Argentina:
James (BM): Buenos Aires, Santesson 58, 100, 446 (S).
25. Parmelina melanochaeta
FIGURE 17a
Parmelina nielanochaeta (Kurokawa) Hale, 1974:483.
Parmelia inelanochaeta Kurokaira in Hale and Kurokawa,
1964:133 [type collection: Santa Anna de Chapada, Mato
Grosso, Brazil, Malme 2243 (S, lectot) pe: isolectotypes in
UC, US)].
DEscRIrTIos.-Thallus adnate on bark, turning
olive-buff to cream-buff in the herbarium, 4-7 cm
in diameter; lobes irregularly branched, sometimes
sublinear-elongate, 2-6 mm wide, the margins more
or less crenate, ciliate, the cilia black, mostly simple,
1-2 mm long; upper surface shiny, maculate, mod-
erately to densely isidiate, isidia thin, cylindrical,
usually branched, often with black spinules or short
cilia; medulla white; lower surface black, dark to
pale brown in a rather wide zone near the tips,
moderately rhizinate, rhizines black to blackish
brown, simple. Apothecia adnate to substipitate,
1-3 mm in diameter, the amphithecium isidiate,
spinulate, the disc Vandyke-brown; spores 8, 8-10 x
13-15 pm.
CHEiwsTRY.-Cortex K + yellow (atranorin); me-
dulla K-, C+, KC+ rose, P- (gyrophoric acid).
DIsTRIBuTIoN.-South America.
REMARKS.-This species is very close to P. dissecfa
in general morphology and has the same chemistry.
The lobes, however, are much broader, the isidia
ciliate, the marginal cilia long and distinct, and
the upper cortex strongly white-maculate. It occurs
in a rather restricted area from Brazil into Para-
guay with one specimen recorded from Colombia.
SPECIMF\S ExA\IINED.-Colombia: Cundinamarca, Flenniken
1745 (US). Brazil: Mato Grosso, Malme 2397B (S). Paraguay:
Asuncih, Schinini 17333 (M\'M): Gran Chaco, hlalme (S).
Additional records from Brazil and Paraguai are listed in
Hale and Kurokana, 1964:133.
26. Parmelina metarevoluta
FIGURE 17b
Par??7e[i?7a rnetaraloluta (Asahina) Hale, 1974:483.
Pnrmelia tnetarevolirtn Asahina, 1960:97 [type collection:
AzusaJama, Prov. Shinano, Japan, h'uno and Kurokawa
59243 (TSS, lectot) pe; isolectotype in US)].
DEscRIPTIo;u.-Thallus adnate on bark or rock,
pale olive-buff, 2-6 cm in diameter; lobes dicho-
tomously branched, sublinear-elongate, more or
less ascending at the tips, 1-4 mm wide, lobules
sometimes present on older lobes, the margins more
or less crenate, narrowly black rimmed, ciliate, the
cilia black, shiny, simple, 0.2-0.5 mm long; upper