Family 50. ORCHIDACEAE (including APOSTASIACEAE ...

25; --HAe Pedersen, ibid. 131 (1997) 102, Fig. 45A, 54; --Cootes, Orch. Philip. (2001) 109. –Type:
Vanoverbergh 1046 (AMES*, lecto, designated by LO Williams, PJS 80 (1951) 320; iso: A*, PNH,
destroyed).
Luzon: Mountain Province, no further locality data, Nov-Dec 1910.
Acoridium vanoverberghii (Ames) Ames, Orchidaceae 7 (1922) 82; --Ames in Merr., EPFP 1 (1924) 290.
LUZON: Mountain Province, Ifugao (Mt Polis), Nueva Vizcaya. Epiphytic in mossy forests,
altitude c. 2000m. Fl. Jan, Feb, Nov/Dec.
Dendrochilum warrenii HAe Pedersen & Gravend., Blumea 49 (2004) 358-360. –Type:
Dendrochilum wenzelii Ames, Orchidaceae 5 (1915) 65; --HAe Pedersen et al., Opera Bot. 130 (1997) 21; --
HAe Pedersen, ibid. 131 (1997) 85, Fig. 43; Pl. IIIA-B; --Cootes, Orch. Philip. (2001) 110. –Type: Wenzel
264 (AMES*, lecto, designated by LO Williams 1951: 301; iso: BM, C, K, L*, NY*, P, SING*, US*). Leyte:
Leyte prov., Masaganap near Jaro, epiphyte in forest, altitude 750m, 11 Feb 1914.
Acoridium wenzelii (Ames) Ames, Orchidaceae 7 (1922) 82; --Ames in Merr., EPFP 1 (1924) 291.
LUZON: Apayao (Mt Sulu), Kalinga (Balbalan), Nueva Vizcaya (Dalton Pass), Camarines Sur
(Mt Isarog; Sagnay), Albay (Mt Malinao), BILIRAN (Mt Suiro), LEYTE: Leyte (Buenavista and
Masaganap, near Jaro; Mt Abucayan), MINDANAO: Bukidnon (Mt Kitanglad). Epiphytic in
forests (sometimes mossy), frequently on ridges, altitude 500-1800m. Fl. Feb, Mar, Dec.
Dendrochilum williamsii (Ames) Pfitzer in Engl., Pflanzenreich iv. 50. ii. B. 7 (1907) 114, Fig. 38 S; --HAe
Pedersen et al., Opera Bot. 130 (1997) 22; --HAe Pedersen, ibid. 131 (1997) 83, Fig. 41; --Cootes, Orch.
Philip. (2001) 111; --Acoridium williamsii Ames, Proc. Biol. Soc. Wash. 19 (1906) 143; --Ames in Merr.,
EPFP 1 (1924) 291. –Type: RS Williams 1939 (NY*, holo; iso AMES*, GH*, K, US*). Luzon: Benguet prov.,
La Trinidad, on rocks, 28 Sept 1904.
LUZON: Mountain Province (Mt Data; Mt Pukis), Ifugao (Mt Himi-o; Mt Pimmage; Sumigar),
Benguet (Mt Pauai; La Trinidad; Mt Sto Tomas), Nueva Vizcaya, Rizal (Montalban; Mt
Tokduanbaboy; Mt Irid). Epiphytic in mossy forests (rarely lithophytic), altitude 1165-2540m. Fl.
Sept-Nov.
Dendrochilum woodianum Ames, PJS 2 c (1907) Bot. 318, nom. nud.; Orchidaceae 2 (1908) 80 (& an
unnumbered Fig. on p. 81); --HAe Pedersen et al., Opera Bot. 130 (1997) 60; --HAe Pedersen, ibid. 131
(1997) 37, Fig. 12. –Type: Merrill 5618 (AMES, holo; iso: K, SING, US; drawings at BM, NY, PNH, SING).
Mindoro: Mindoro Oriental prov., Mt Halcon, altitude 2050-2600m.
Pseudacoridium woodianum (Ames) Ames, Orchidaceae 7 (1922) 79; --Ames in Merr., EPFP 1 (1924) 284.
MINDORO: Mindoro Oriental (Mt Halcon; Subaan River near San Teodoro). Epiphyte on ridges
between 1200-2830 m. Fl. Apr, May, Nov.
Dendrochilum yuccaefolium LO Williams, Bot. Mus. Leafl. 5 (1937) 53; --HAe Pedersen et al., Opera Bot.
130 (1997) 58; --HAe Pedersen, ibid. 131 (1997) 175, Fig. 83C, 101; Pl. VIIA; --Cootes, Orch. Philip. (2001)
111. –Type: Loher 13216 (AMES, holo; iso K). Luzon: Rizal prov., Montalban, Paningtingan.
LUZON: Rizal (Montalban, based on the type and two other unlocalized collections, Loher
13951 and 14717). Cootes (2001) also adds Aurora and Quezon provinces in the distribution
range, reportedly epiphytic at altitudes over 500m. Habitat preferences and altitudinal range
otherwise not known. Fl. Jan, Sept; known to flower in March from cultivated specimens.
Possible novelties:
Dendrochilum sp. aff. cootesii
LUZON: Aurora.
Dendrochilum sp. aff. unicallosum
LUZON: Nueva Vizcaya