The Family Cladoniaceae (Lecanorales) in the Galapagos Islands
Author
Yánez-Ayabaca, A.
Biodiversity Assessment, Charles Darwin Foundation (AISBL), Puerto Ayora, Santa Cruz, Galapagos, Ecuador, * Corresponding author: F. Bungartz, phone: + 593 - 5 2526146 / 47 ext. 218, fax: + 593 - 5 2527013 ext. 103, email: frank. bungartz @ fcdarwin. org. ec Universidad Central del Ecuador, Quito, Ecuador, email: albayanez 8 @ gmail. com
Author
Ahti, T.
Botanical Museum, Finnish Museum of Natural History, P. O. Box 7, FI- 00014 University of Helsinki, Finland,
Author
Bungartz, F.
Biodiversity Assessment, Charles Darwin Foundation (AISBL), Puerto Ayora, Santa Cruz, Galapagos, Ecuador, * Corresponding author: F. Bungartz, phone: + 593 - 5 2526146 / 47 ext. 218, fax: + 593 - 5 2527013 ext. 103, email: frank. bungartz @ fcdarwin. org. ec Universidad Central del Ecuador, Quito, Ecuador, email: albayanez 8 @ gmail. com
text
Phytotaxa
2013
129
1
1
33
https://www.mendeley.com/catalogue/f9153903-31d2-31bc-a0c2-f33d3829b86c/
journal article
10.11646/phytotaxa.129.1.1
1179-3163
5085561
Cladia aggregata
(Sw.) Nyl. (1870: 167)
(
Figs. 1a–b
)
Primary thallus
not seen, evanescent, of lobulate-papillate squamules (according
Ahti, 2000
);
pseudopodetia
erect, forming cushions or dense mats, dark brown or pale yellowish,
4–4.5 cm
tall, hollow, terete to ± flattened or angulate, some parts, when older, densely branched; branching anisotomic, dichotomous;
surface
corticate, glossy or matt; usually abundantly perforate; perforations frequently ellipsoid;
pycnidia
with hyaline jelly;
apothecia
not seen.
Spot tests and chemistry
: P−, K− or + yellow, C−, KC−, UV−; barbatic and 4-
O
-demethylbarbatic acid (chemotype I).
Distribution and ecology
: Currently know only from the humid zone in the highlands of Isabela and Santa Cruz; on bare, sunny, exposed soil, often along trails and in reindeer lichen heaths.
Notes
: The cushions or dense mats of this species may at first be mistaken for a reindeer lichen but, the genus
Cladia
is easily recognized because it has completely corticate pseudopodetia with abundant ellipsoid perforations.
According to
Ahti (2000)
the fertile pseudopodetia typically represent the thickest branches. Fertile material was, however, not encountered among the
Galapagos
specimens and this observation cannot be confirmed here.
Selected specimens examined
:
ECUADOR
.
GALAPAGOS
:
Isabela Island, Volcán Cerro Azul
, S-slope above
Iguana Cove
, crater on SE-slope,
800 m
, humid zone,
22 June 1976
,
Sipman, H.J.M.
L-58
(L,
COLO 297902
)
.
Santa Cruz Island
,
SE of El Puntudo
,
W of Mt. Crocker
, 1972,
Weber
L-55403
(
DUKE
, H,
TUR
), saddle
between Mt. Crocker and El Puntudo
,
750–800 m
, 1976,
Weber
&
Lanier
,
Lich. Exs.
COLO 497
(
DUKE
, H,
TUR
, U, QCA, FH 197181,
COLO 297764
), NE-slope of
El Puntudo
,
0°38’39.10”S
,
90°20’7.90”W
,
813 m
, humid zone, on open soil among
Cladonia
spp.
10 Aug 2008
,
Bungartz, F.
8151
(
CDS
40797)
,
along the trail from
Media Luna
to
El Puntudo
, at a small stream crossing the trail,
0°39’4”S
,
90°20’5”W
,
690 m
, humid zone, bare ground along the footpath,
28 Jan 2006
,
Bungartz, F.
3971
(
CDS
27901)
.