Nepenthes sumagaya

Nepenthes sumagaya

Synonymy

Nepenthes sumagaya Cheek in Pl. Carnivora 36(2): 45. 2014 sec. Cheek 2014
  • Nepenthes amabilis Wistuba, Gronem., Micheler, Marwinski, Gieray, Coritico & V.B.Amoroso in Plants (Basel) 3(2): 295 (-297, fig. 4). 2014, nom. illeg., syn. sec. Cheek 2014
    • Type: Philippines, Mindanao, Mt. Sumagaya, trail from Barangay Mat-I (Municipality of Claveria) to the summit 19.08.2012, T. Gronemeyer and A. Wistuba, holotype CMUH00008635 (male flower), isotype [sic!] CMUH00008637 (female flower), Central Mindanao University Herbarium (CMUH), Musuan, Bukidnon, Philippines.

Description

The stems are often very short. Plants start to grow upright at a young age and are supported by surrounding vegetation, mostly low shrubs. The stem of short plants is green and often almost without any significant internodes. Occasionally, in more shady locations and where the stems can scramble along other plants as support, plants develop climbing stems that reach 2–3 m in length. These vines are almost round in the cross-section, 8 mm in diameter, green to dark red and with internodes that are 10–15 cm long.
Leaves of the vines and short stems are broadly spathulate-ovate, 10 cm long and 3.5 cm wide, with a broad, winged and 1 cm-wide petiole. The leaves are green with yellowish to reddish midribs. The leaf attachment is decurrent, running 1–3 cm down the stem. One to two longitudinal nerves run parallel to the midrib in the outer half of the lamina. Pitchers are attached to tendrils up to 13 cm long.
Lower pitchers of rosette plants are unknown; plants with lower pitchers could not be identified with certainty at the type locality.
Upper pitchers of short and climbing stems are 10–15 cm high, approximately 3 cm wide, mostly cylindrical, slightly infundibular in the lower third and distinctly contracted in the region below the peristome. The bottom fifth is often slightly ventricose with a slight waist above. The pitcher wings are reduced to ribs. Only occasionally in some pitchers, approximately 5 mm-wide wings bearing two or three fringes measuring approximately 5 mm in length are visible close to the peristome. The peristome is cylindrical and approximately 4 mm wide. The spur on the pitcher lid is unbranched, filiform and 3 mm long. The pitcher mouth is round, slightly elevated at the front and elongated towards the back with a slightly developed neck. The lids are 3 cm long, 3.5 cm wide, orbicular, sometimes with a small appendage near the base of the lid, which is mostly reduced to a keel. The glands are evenly distributed across the lower surface of the lid. The exterior of the upper pitchers is yellowish green to orange, unevenly suffused with red or with red blotches. The interior of the pitcher is whitish with numerous purple blotches that often shine through the pitcher wall. The peristome is yellowish green with numerous red stripes. The lid is yellowish with numerous red blotches.
The inflorescence is a panicle composed of a 15 cm-long scape and an additional 15 cm rachis bearing two-flowered, 20 mm-long pedicels. The anther column is up to 14 mm and the ovary 5 mm long, containing ripe seeds; the tepals are up to 7 mm long and ovate.
A prominent indumentum is present across the foliage, the inflorescence, especially the margins of young leaves, and pitchers, consisting of brownish hair up to 1 mm long.A

Conservation

As no comprehensive data about the distribution of this taxon have been recorded, it is classified here as EN (endangered).B

Etymology

Supposedly referring to the type locality, Mount Sumagaya.C

Habitat

Terrestrially in lower and upper montane forest in mossy and open substrate.D

Bibliography

A. Gronemeyer, T., Coritico, F., Wistuba, A., Marwinski, D., Gieray, T., Micheler, M., Mey, F.S. & Amoroso, V.B. 2014: Four New Species of Nepenthes L. (Nepenthaceae) from the Central Mountains of Mindanao, Philippines. – Plants (Basel) 3(2): 284-303 (as Nepenthes amabilis Wistuba, Gronem., Micheler, Marwinski, Gieray, Coritico & V.B.Amoroso in Plants (Basel) 3(2): 295 (-297, fig. 4). 2014)
B. Gronemeyer, T., Coritico, F., Wistuba, A., Marwinski, D., Gieray, T., Micheler, M., Mey, F.S. & Amoroso, V.B. 2014: Four New Species of Nepenthes L. (Nepenthaceae) from the Central Mountains of Mindanao, Philippines. – Plants (Basel) 3(2): 284-303 (as Nepenthes amabilis Wistuba, Gronem., Micheler, Marwinski, Gieray, Coritico & V.B.Amoroso in Plants (Basel) 3(2): 295 (-297, fig. 4). 2014)
C. Berendsohn, W.G. 2017+: Compilation of Nepenthes data for the Caryophyllales taxonomic backbone.
D. Gronemeyer, T., Coritico, F., Wistuba, A., Marwinski, D., Gieray, T., Micheler, M., Mey, F.S. & Amoroso, V.B. 2014: Four New Species of Nepenthes L. (Nepenthaceae) from the Central Mountains of Mindanao, Philippines. – Plants (Basel) 3(2): 284-303 (as Nepenthes amabilis Wistuba, Gronem., Micheler, Marwinski, Gieray, Coritico & V.B.Amoroso in Plants (Basel) 3(2): 295 (-297, fig. 4). 2014)

Specimens

CountryDateCollector + collecting numberHerbariaTypeScanDerivatives
Philippines, Mindanao, Mt. Sumagaya, trail from Barangay Mat-I (Municipality of Claveria) to the summit 19.08.2012, T. Gronemeyer and A. Wistuba, holotype CMUH00008635 (male flower), isotype [sic!] CMUH00008637 (female flower), Central Mindanao University Herbarium (CMUH), Musuan, Bukidnon, Philippines.
Citation: No Citation available. This specimen either has no or multiple field units.