See Calvente thesis 2010
7.2. Rhipsalis micrantha subsp. monticola (Barthlott)
Calvente, stat. nov.
Rhipsalis kirbergii var monticola Barthlott, Trop.
Subtrop. Pflanzenwelt 10: 15. 1974 .-TYPE: Barthlott, Trop. Subtrop.
Pflanzenwelt 10: Abb. 8. 1974 (lectotype, here designated); ECUADOR.
Loja: Catamayo, estrada Catamayo-Catacocha, Jan 2008, Calvente 383 (epitype,
here designated: QCNE!; isoepitype: SPF, QCA, LOJA, K,
- Epiphyte, terrestrial or lithophyte in open and sunny habitat, 0.7
m long, branching apical, sub-apical, rare lateral.
- Stem segments flattened, cylindric to quadrangular in longitudinal
section, ca. 3 mm diam, olive green sometimes with pinkish margin,
succulent to stiff and woody at more basal segments, dimorphic, midrib
3-5 mm diam, with shape not evidently marked (hidden by stem succulence);
primary stem segments 15-25 cm long, cylindric to 4-winged, wings
0-0.3 cm wide; secondary stem segments 6-20 cm long, base and apex
truncate; wings 3-4(-5), 0.3-0.5(-0.6) cm wide, margin crenate, plane,
with 1-3 mm projections.
- Areoles between margin projections, 2.5-5.3 cm apart, first of segment
1-2 cm distant from segment base; when sterile 2-3 mm diam, glabrous
or with 1 acicular scale; when fertile 3 mm diam, glabrous, with 1(-2)
- Flowers unknown. Fruit 7 X 5-6 mm, globoid, elongate, whitish, glabrous.
Figure 7: C.
Notes; Barthlott linked R. micrantha subsp. monticola
to R. kirbergii (= R. micrantha subsp. tonduzii)
because of the shared multi-winged stems. However, R. micrantha
subsp. monticola is endemic to Loja (southern Ecuador) and
well-characterized by the succulent, curved, stout and 4-5-winged stems.
R. micrantha subsp. monticola is further characterized
by the basal stem segments with areoles including up to 10 bristle-like,
long acicular scales (ca. 3 mm long), and greenish to reddish immature
Habitat and distribution: Occurs in Loja region (Ecuador) in mostly
dry (with daily fluctuations of fog), open formations of higher altitude,
ranging from 1300-2300 m. Figures 8, 9.
Rhipsalis kirbergii var. monticola Barthlott. Trop.
und Subtrop. Pflanzv. 10 p15 (1974)
Treated as a synonym of R. micrantha f. kirbergii by
Desc from Trop. und Subtrop Pflanzv. 10 p.15 (1974)
Differs from type by
Thicker, 8 – 11mm broad branches, its dirty olive green epidermis
and its spreading , overhanging growth; its insignificant flowers do
not show any difference from the type.
Grows on rocks and in dense bush ca. 5km south of Loja (South Ecuador)
at a (for Rhipsalis) unusual altitude of 2000m, in company with big
tillandsias from the T. fendleri group and also T. straminea.