Danser's Monograph on Nepenthes: Nepenthes albo-marginata

2. Nepenthes albo-marginata LOBB, ex LINDL., Gard. Chron., 1849, p. 580, cum ic. (1849) (non vidi) ; HOOK. F., Transact. Linn. Soc. XXII, p. 422, t. LXXIII (1859) ; MIQ., Ill., p. 8 (1870) ; HOOK. F., in D. C., Prodr., XVII, p. 102 (1873) ; PLANCH., Fl. serr., XXII, p. 165, t. 2343-2344 (1877) ; BROOME, Garden, XVII, p. 542 (1880) ; REG., Gartenfl, 1880 ; p. 264 (1880) ; BECC., Mal., III, p. 5, 8, 13 (1886) ; HOOK., F., Fl. Br. Ind.; V p. 70 (1886) ; DIXON, Gard. Chron., 1888, 1, p. 170 (1888) ; WUNSCHM., in ENGL. & PRANTL, Nat. Pflanzenfam., III, 2, p. 260 (1891) ; BECK, Wien. Ill. Gartenz., 1895, p. 190 (1895) ; MOTT., Dict., III, p. 447 (1896) ; BOERL., Handl. III, 1, p. 54 (1900) ; MACF., in ENGL., Pflanzenr., IV, 111, p. 37 (1908) ; Journ. As. Soc. Beng., LXXV, p. 281 (1914) ; in BAIL., Cycl., IV, p. 2126 (1919) ; MERR., Bibl. Enum. Born., p. 281 (1921): RIDL., Fl., III, p. 21 (1924): N. tomentella MIQ., Fl., I, 1, p. 1075 (1858) ; suppl., p. 151 (1860) ; Journ. Est. Néerl., 1, p. 277 (1861) ; TEYSM. & BINN., Cat., p. 99 (1866) ; MIQ., Ill., p. 5 & 8, t. V (1870) ; BECK, Wien. Ill. Gartenz., 1895, p. 191 (1895) pro var.

Icones: Transact. Linn. Soc., XXII, t. LXXIII (1859) optima ; MIQ., Ill., t. V (1870) mediocris ; Fl. serr., XXII, t. 2343-2344 (1877) colorata, mediocris, asc. inf. 1 ; Garden, XVII, t. CCXXXVII (1880) mediocris, asc. inf. 1 ; Wien. Ill. Gartenz., 1895, p. 219, ic. 13 (1895) bona, asc. 1 ; Trop. Nat., XVI, p. 200 (1921) asc. 1.

Folia mediocria sessilia, lamina lanceolata, nervis longitudinalibus utrinque 2-3, basi 1/3-1/2, caulis amplectente, vagina 0 ; ascidia rosularum parva, parte inferiore anguste ovata, os versus cylindrica, alis 2 fimbriatis, sub peristomio annulo incrassato albo dense tomentoso ; peristomio operculum versus acuto elevato, cylindrico, ad 1 1/2 mm lato, costis 1/5-1/8 mm distantibus, dentibus fere 0: operculo suborbiculari subcordato intus plano ; ascidia inferiora ut rosularum sed maiora et oblongiora ; ascidia superiora magnitudine mediocria, plerumque tubulosa, costis 2 elevata v. ad os rudimento alae ornatis, sub peristomio annulo incrassato albo denso tomentoso ; peristomio operculum versus acuto, cylindrico, 1 -2 mm lato costis c. 1/5-1/8 mm distantibus, dentibus fere 0 ; operculo ovato-rotundato, subcordato, facie inferiore plano ; inflorescentia racemus longus pedicellis inferioribus 20-30 mm longis, fere omnibus 2-floris ; indumentum iuventute densum album subtomentosum, pilis stellatis compositum, denique parcius, in foliorum pagina inferiore pilis longioribus patentibus intermixtum.

Stems climbing, slender, cylindrical, the part with adult leaves 3 to 7 mm thick, the internodes 3 to 12 cm long ; at the base of older plants often short shoots and rosettes. Rosette leaves scattered, coriaceous, lanceolate or linear-lanceolate, up to 15 cm long, acute, often involute at the margin, attenuate towards the obtusely auriculate almost wholly amplexicaul base, indistinctly nerved ; tendril usually very short, mostly 1 to 3 cm long. Leaves of the short shoots like those of the rosettes, but larger, up to 30 cm long, less distinctly auriculate at the base, with an indistinct and irregular reticulate nervation ; tendril usually shorter than half the leaf. Leaves of the climbing stems scattered, coriaceous, often involute at the margin, lanceolate or linear-lanceolate, 10 to 25 cm long, broadest usually above the middle, acute, gradually and sometimes strongly attenuate towards the base, but not petiolate, clasping 1/2 to 2/3 of the stem without sheath ; reticulate nervation indistinct, longitudinal nerves distinct, 2 or 3 on each side, originating in the basal part of the midrib, running parallel in the outer 1/3 part of the lamina ; tendrils shorter than the leaf, the pitcher-bearing ones always with curl. Pitchers of the rosettes up to 12 cm high, ovate or narrowly ovate in the lower 2/3 part, cylindrical in the upper part or slightly infundibulate towards the mouth, over the whole length with 2 fringed wings, the wings to 3 mm broad, the segments of the fringe about 3 mm long, 1/2 to 2 1/2 mm apart ; immediately below the peristome a semicylindrical, very densely tomentose whitish ribbon 1 to 2 mm thick ; mouth nearly round, almost horizontal in front, elevated and acute towards the lid ; peristome cylindrical, up to 1 1/2 mm broad, the ribs 1/5 to 1/8 mm apart, the interior margin almost entire ; interior surface of the pitcher with overarched glands in the lower ovate part, about 700 to 800 glands on 1 cm2 ; lid suborbicular, subcordate, with many small, not deepened and few larger deepened glands on the lower surface, flat ; spur 1 to 2 mm long, flattened, branched or not. Pitchers of the short stems like those of the rosettes, but larger and more slender, about as long as those of the climbing stems. Pitchers of the climbing stems slender, nearly cylindrical, sometimes slightly ventricose in the lower portion, sometimes narrowly infundibulate, abruptly originating from the tendril, incurved with a curve about 10 mm wide, 8 to 19 cm high, 2 to 4 cm wide under the mouth, sometimes narrowed to 1 cm in the middle, with 2 prominent ribs over the whole length, often bearing a short remnant of fringe at the top, with a semicylindrical, densely tomentose, whitish ribbon 2 to 4 mm broad under the mouth ; mouth oblique, incurved and acute towards the lid ; peristome cylindrical, 1 to 2 mm broad, the ribs about 1/5 to 1/8 mm apart, the interior margin almost entire ; interior surface of the pitcher glandular, in the tubulose pitchers for more than 4/5, -wholly in the infundibulate pitchers, with deepened glands, about 700 to 800 on 1 cm2 ; lid suborbicular, subcordate, with many small not deepened and a few larger deepened glands, obtusely keeled in the basal part of the midrib, the remainder flat, often involute from the sides and seemingly narrow ; spur short, inserted close to the lid, not branched, flattened, attenuate, 3 to 5 mm long. Male inflorescence a raceme, the peduncle usually 7 to 12 cm long, about 3 mm thick, the axis 20 to 30 cm long, gradually attenuate, the lower pedicels 20 to 30 mm long, the upper ones but little shorter, all of them thin and without bracts. Tepals obovate-oblong, 3 to 4 mm long. Staminal column about as long as the tepals, the anthers in 1 whorl. Female inflorescence like the male one, but shorter on the average, 4 to 20 cm long. Perigone like that of the male flower. Ovary sessile. Fruit very slender, 20 to 35 mm long, the valves 2 to 3 mm broad, very gradually attenuate towards both ends. Seeds filiform, about 15 to 22 mm long, the nucleus transversely wrinkled. Indumentum a dense tomentum of short stellate hairs, mostly very dense in young parts, sparse on the stem, almost none on the upper side of the leaves, often intermixed with longer, not-branched spreading hairs on the underside of the leaves, the staminal column rather densely, the ovary densely, the fruit sparingly tomentose. Colour of herbarium specimens strikingly pale or even whitish, especially on the upper surface of the leaves and the pitchers, the underside of leaves often reddish brown, the pitchers spotted or not towards the mouth, the inner surface strikingly blue or red, and pruinose. (Description after all the plants seen by the author.)

MALAY PENINSULA. Kedah: Kedah-peak, 1000 m, 13 XI 1915, HANIFF 611, H. S. (0) ; 1200 m, VI 1893, RIDLEY, H. S. (m), Penang: LOBB, H. S. (0) ; 1880, KUNSTLER 1720 (?), H. B. (0) ; P. Bukit, SAHIT, H. S. (0) ; vern. name: periok kera ; P. Penang, Government Hill, 720 m, 23 VII 1917, BURKILL 2612, H. S. (m) ; Rifle Range, VII 1898, RIDLEY H. S. (m, f) Penang Hill, 600 m, IV 1884, coll.? 237, H. S. (0) ; Perak: Larut (MACF., Journ. As. Soc. Beng. LXXV, p. 282) ; Malacca: Mt. Ophir (MACF. in ENGL., Pflanzenr., IV, 111, p. 38) ; G. Ledang, VI 1892, RIDLEY, H. S. (m) ; Singapore: (HOOK F., Transact. Linn. Soc. XXII, p. 422 ; MACF., in ENGL., Pflanzenr., IV, 111, p. 38).

SUMATRA. Res. Tapiannoeli: Sibolga, on the coast, II 1856, TEYSMANN 530, H. A. R. T. (0), authentic specimens of N. Teysmanniana MIQ ; TEYSMANN 537, H. B. (f) ; TEYSMANN 537, H. A. R. T. (f), authentic specimens of N. tomentella MIQ.; island near Sibolga (MACF., in ENGL., Pflanzenr., IV, 111, p. 38): Res. Westcoast: cleft of Air Poetih near Pajakoemboeh, XII 1922, JACOBSON 2135, H. B. (m) ; H. L. B. (m) JACOBSON 2136: H. B. (0) ; H. L. B. (0) ; vern. name: kedieng kedieng hanotoe.

BORNEO. British North Borneo: maritime rocks near the mouth of the Lokotan and Tanjong Poe Rivers (HOOK. F., Transact. Linn. Soc. XXII, p. 422) ; Sarawak: Lingga, III 1913, H. S. M. (0) ; Mt. Tiang Laju, VI 1906, HEWITT, H. S. M. (0) ; G. Matang, 240 m, 20 VI 1893, BARTLETT H. S. M. (0) ; Bruang, 480 m, HAVILAND 110, H. S. M. (0) ; G. Santubong, 22 VIII 1912, ANDERSON 237 & 238, H. S. (f) ; Piningiao, near Kuching (BECC., Mal., III, p. 13) ; Mt. Bongsch (Bongsoh?) (MACF., in ENGL., Pflanzenr., IV, 111, p. 38) ; Res. Western Division: P. Karimata, G. Djoendjoeng Doelang, TEYSMANN, H. B. (0), vern. name: akar tempoejoeng ; Mt. Peneyn, near Poentianak, TEYSMANN 10967 (BECC., Mal., III, p. 13 ; MACF., in ENGL., Pflanzenr., IV, 111, p. 38 ; no more in the H. B.., as says BECCARI ; Sintang, TEYSMANN 10966a, H. B. (0) ; Liang Gagang, HALLIER B 2653 & 2654, 7 III to 7 IV 1894, H. B. (0) ; G. Kelam, HALLIER B 2300, 30 1-13 II 1894, H. B. (f) ; Oeloe Kenepai, 20 XII 1893, HALLIER B 1455 & 1456, H. B. (0) ; Res. Southern & Eastern Division: Bt. Batoe Ajoh, IV 1897, JAHERI 1652, H. B. (0).

N. albo-marginata seems to be limited to the Sunda-shelf. It has been found from nearly at sea level (rocks on the coast) to 1200 m. This gives to this species a fair opportunity of dispersion.

The var. villosa of HOOKER (in D. C., Prodr. XVII, p. 103), the var. typica, tomentella and villosa of BECK (Wien. Ill, Gartenz., 1895, p. 190-191) and the var. villosa and rubra of MACFARLANE (ENGL., Pflanzenr., IV, 111, p. 33) are extreme variations or still less important forms.

Vernacular names. In the Malay Peninsula (Malay): perioek kera, monkeys' rice pot, one of the commonest names for different species of this genus ; in the Padang Uplands (Minangkabau) ; kedieng kedieng hantoe ; in P. Karimata (Malay) ; akar tempoejoeng, the climber tempoejoeng, the latter word probably a proper name ; TEYSMANN records the following names for all the species at the coast of Sibolga: katoepat baroek, tjalong baroek, and tahoel-tahoel, for which see under N. Treubiana.

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