A revision of Geonoma (Arecaceae)
Author
Henderson, Andrew
text
Phytotaxa
2011
2011-02-18
17
1
271
journal article
24911
10.11646/phytotaxa.17.1
65962ba7-eec1-40e7-aed6-cef94e99ca39
1179-3163
3538362
67f.
Geonoma undata
subsp.
skovii
(Henderson, Borchsenius, & Balslev) Henderson
, comb. & stat. nov.
Basionym:
Geonoma skovii
Henderson, Borchsenius & Balslev (2008: 60)
. Type:
ECUADOR
.
Morona-Santiago
: along the Limón-Cuenca road
4 km
above Plan de Milagro,
3°04’S
,
78°30’W
,
1920 m
,
19 May 1988
,
B. Bergmann & H. Pedersen 62589
(
holotype
NY!, isotypes AAU!, QCA n.v.).
Leaves
veins raised and rectangular in cross-section adaxially; basal pinna 1.3(0.6–2.0) cm wide; apical pinna 7.3(2.7–11.3) cm wide.
Inflorescences
prophyll margins with irregular, spine-like projections; flower pits usually spirally arranged, distantly spaced.
Distribution and habitat:—
From 2°40’–
3°38’S
and 78°00’–
78°30’W
in
Ecuador
on eastern Andean slopes at 1778(1470–1920) m elevation in montane rainforest (
Fig. 43
).
Subspecific variation:—
There is geographic discontinuity, and specimens come from three different mountain areas. Specimens from the Cordilleras Cutucú and Cóndor have more pinnae per side of the rachis than those from the eastern slopes of the main Cordillera. However, there are too few specimens to test for differences. Jean-Christophe Pintaud (pers. comm.) reports that this subspecies also occurs in adjacent
Peru
.