Dendrobium pachyphyllum (Kuntze) Bakh.

Ormerod, Paul, Kurzweil, Hubert & Watthana, Santi, 2021, Annotated List of Orchidaceae for Myanmar, Phytotaxa 481 (1), pp. 1-262 : 112-114

Dendrobium pachyphyllum (Kuntze) Bakh. f., Blumea 12: 69, 1963

Basionym: Callista pachyphylla Kuntze, Revis. Gen . Pl. 2: 654, 1891. Heterotypic synonyms: Dendrobium carnosum Teijsm. & Binn., Natuurk. Tijdschr. Ned. -Indië 5: 489, 1853, nom. illeg. Dendrobium pumilum Roxb., Fl. Ind. ed. 1832, 3: 479, 1832, nom. illeg. Callista pumila Kuntze, Revis. Gen . Pl. 2: 655, 1891. Flickingeria pumila (Kuntze) A.D.Hawkes, Orquídea (Rio de Janeiro) 27: 306, 1965. Bolbodium pumilum (Kuntze) Brieger in F.R.R.Schlechter,

Orchideen Beschreib. Kult. Zücht., ed. 3, 1 (11−12): 721, 1981.

Specimens examined:— YANGON. Unspecified : icon., artist unknown ( CAL, K). TENASSERIM. Parish 98 ( K) . TANINTHARYI. Myeik District: Griffith 24 (not located), fide Seidenfaden (1985: 11). Reported from Kayin and Rakhine states, Ayeyarwady and Bago regions and Mon State by Kress et al. (2003: 74), but we have not seen material from these areas.

Distribution:— Northeastern India, Bangladesh, Myanmar, Thailand, Indochina and western Malesia.

Dendrobium palpebrae Lindl., J. Hort. Soc. London 5: 33, 1850. Type :— MYANMAR. Mon State : Mawlamyine District, 1849, cult. Veitch s.n. (holotype: K-LINDL)

Homotypic synonym: Callista palpebrae (Lindl.) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Heterotypic synonym: Dendrobium farmeri Paxton var. album Regel, Gartenflora 17: 321, 1868. Type :— MYANMAR. Mon State : Mawlamyine District, comm. & imp. Low s.n. (holotype: not located) .

Specimens examined:— KACHIN. Bhamo District: Berkeley s.n. ( K). TENASSERIM. Parish 377 (not located), fide Parish (1883: 192) . MON. Mawlamyine District : types; same loc., Peche s.n. (not located), fide Rolfe (1916a: pl. 8683) .

Distribution:— Northeastern India, Myanmar, Thailand and Indochina.

Dendrobium panduriferum Hook. f., Fl. Brit. India 6: 186, 1890. Type:— MYANMAR. Southern Bago Region: cult. in Rangoon, icon. Gilbert s.n. (holotype: CAL; copy K)

Homotypic synonyms: Callista pandurifera (Hook.f.) Kuntze, Revis. Gen . Pl. 2: 655, 1891 [as panduriformis]. Pedilonum panduriferum (Hook.f.) Brieger in F.R.R. Schlechter, Orchideen Beschreib. Kult. Zücht., ed. 3, 1 (11‒12): 681. 1981. Eurycaulis panduriferus (Hook.f.) M.A.Clem., Telopea 10: 287, 2003.

Heterotypic synonyms: Dendrobium panduriferum Hook. f. var. serpens Hook. f., Fl. Brit. India 6: 186, 1890. Dendrobium serpens (Hook. f.) Hook.f., Ann. Roy. Bot. Gard. (Calcutta) 5 (1): 10, 1895.

Specimens examined:— BAGO. Bago District: type. Also reported from Yangon Region by Kress et al. (2003: 74), but we have not seen material from this area.

Distribution:— Central Myanmar, Thailand and western Malesia.

Dendrobium parcum Rchb. f., Gard. Chron. 1866: 1042, 1866. Type :— MYANMAR. Mon State : Mawlamyine District, Parish 81 (holotype: K; isotype: W-R 41246 )

Homotypic synonym: Callista parca (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Heterotypic synonyms: Dendrobium hexadesmia Rchb. f., Gard. Chron. 1869: 710, 1869. Type:— ORIGIN UNKNOWN (probably Myanmar) . Without collector s.n. (holotype: W-R 41244 ) .

Dendrobium listeroglossum Kraenzl. in H.G.Reichenbach, Xenia Orchid. 3: 108, 1892. Type:—ORIGIN UNKNOWN (probably Myanmar). Without collector s.n. (holotype: not located).

Dendrobium tapingense W.W.Sm. , Notes Roy. Bot. Gard. Edinburgh 13: 202, 1921. Type:— MYANMAR. Kachin State: Bhamo District , 610 m, Mar 1914, Forrest 12608 (holotype: E).

Specimens examined:—? MYANMAR. Types cited. KACHIN. Bhamo District: type. CHIN. Mindat District: 18 Aug 2009, Kyaw Khaing 050801 ( TNS [s]), ident. uncertain [material poor]. MANDALAY. Myingyan District : 24 Feb 2006, Khin Myo Htwe 18 ( TNS [s]), fide Tanaka et al. (2015: 77); same loc., 14 Mar 2006, Khin Myo Htwe 035056 ( MBK); same loc., Nov 2009, Saw Lwin et al. MPO 002 ( SING). BORDER AREA NAY PYI TAW – SHAN. Fide Aung et al. (2020: 80). SHAN. Lashio District: 915 m, 8 Apr 1940, Dickason 9629 ( AMES); Taunggyi District : 5 Mar 2014, Saw Lwin SL 64 ( RAF, RAF [s]). MON. Mawlamyine District : type. TANINTHARYI. Dawei District : 1 Mar 2015, Kurzweil s.n., photo. WITHOUT LOCALITY. Imp., without collector s.n. ( W-R 41245 & 41247). Reported from Sagaing and Magway regions by Kress et al. (2003: 74), but we have not seen material from these areas .

Distribution:— Northeastern India, Myanmar, Thailand and Vietnam.

Dendrobium parishii Rchb. f., Bot. Zeitung (Berlin) 21: 237, 1863. Type :— MYANMAR. Mon State : Mawlamyine District, Parish 18 (holotype: K)

Homotypic synonym: Callista parishii (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 655, 1891.

Heterotypic synonyms: Dendrobium rhodopterygium Rchb. f., Gard. Chron., n.s., 3: 684, 1875. Callista rhodopterygia (Rchb.f.) Kuntze, Revis. Gen . Pl. 2: 655, 1891. Type:— MYANMAR. Mon State: Mawlamyine District, Boxall s.n. (holotype: W).

Dendrobium parishii Rchb. f. var. dives Rchb. f., Gard. Chron., n.s., 26: 205, 1886. Type:—ORIGIN UNKNOWN (? Myanmar). Cult. Bull s.n. (holotype: W-R).

Dendrobium polyphlebium Rchb. f., Gard. Chron., ser. 3, 1: 702, 1887. Type :— MYANMAR. Mon State : Mawlamyine District, Berkeley s.n. (holotype: W).

Dendrobium polyphlebium Rchb. f. var. emericii Rchb. f., Gard. Chron., ser. 3, 2: 242, 1887. Type:—ORIGIN UNKNOWN (? Myanmar). Imp. Berkeley s.n. (not located).

Specimens examined:—? MYANMAR. Types. UPPER MYANMAR. Berkeley s.n. (not located), fide Grant (1895: 110). KACHIN. Mohnyin District: 175 m, 6 May 2010, Kurzweil & Saw Lwin KL 2815, photo; Bhamo District: Foerstermann s.n. (W-R 7583). SAGAING. Kale District: fide Aung et al. (2020: 81). CHIN. District not traced: 610 m, comm. 9 Oct 1923, Daun 4 (K); Mindat District: fide Aung et al. (2020: 81). MANDALAY. Pyinoolwin District: 1065 m, without collector 13560 (K); Myingyan District: Khin Myo Htwe 7 (TNS [s]), fide Tanaka et al. (2015: 77); same loc., Khin Myo Htwe 30 (TNS [s]), fide Tanaka et al. (2015: 77). MON. Mawlamyine District: types; same loc., Parish 376 (not located), fide Parish (1883: 193; as D. rhodopterygium ); same loc., 1874, 1875, Parish s.n. (W-R 20943). Reported from Shan State and Tanintharyi Region by Kress et al. (2003: 74−75; as D. rhodopterygium ), but we have not seen material from these areas.

Distribution:— The eastern Himalayas, northeastern India, Myanmar, Thailand, Indochina and southwestern China.

Notes:— W-R 20946 is possibly the type of D. rhodopterygium , and W-R 20955 is possibly the type of D. polyphlebium . More study needs to be made of these two entities. Reichenbach may have been right: they are hybrid taxa. A photograph by Nyan Tun (2014: 231) labelled as D. rhodopterygium resembles a hybrid between D. aphyllum and D. parishii .