1 1 (y Pfitzer-Kränzlin. — Orchidaceae-Monandrae-Coelogyninae. 



62. D. tenue (Oakes Arnes) Pfitz. — Acoridium tenne Oakes Arnes in Proceed. 

 Biol. Soc. Washington XIX. (1906) Ü5 et Orchidaceae II. (1907) ined. t. 21. V. 5. — 

 Pseudobulbi fusiformes, juniores cataphyllis tubulosis vestiti, monophylli, 1,5 — 2,2 cm 

 longi. Folia lineari-oblonga, obtusa, petiolata (petiolus 1 cm longus) trinervia, 3 — 6 cm 

 longa, 2 — 4,5 mm lata. Scapi plerumque breviores quam folia rarius longiores, 4,5 — 

 8 cm longi, filiformes ; bracteae Ovaria superantes erosulae, spicae pluri-multiflorae, graciles. 

 fractiflexae ; bracteae 2 mm longae lataeque. Sepala lineari-lanceolata acuta. Petala 

 anguste lineari-lanceolata, acuminata, angustiora quam sepala. Labelli trilobi lobi laterales 

 semilunati diaphani subacuti, basi appendicula minuta instructi, lobus intermedius parvus 

 tridentatus, denticulis lateralibus rotundatis, obtusis acutisve, tuberculus v. callus minutus 

 ad ipsam basin. Gynostemium minutum ut in D. tenello. — Sepala 3 mm longa, 



1 mm lata, petala 2,5 mm longa, angustiora, labellum vix 1 mm longum. — Aprili, 

 Octobri — Totum per annum? — Fig. 38 M. 



Monsungebiet, Provinz der Philippinen: Mindanao, Berg Apo, an moosigen 

 Bäumen wachsend (Copeland n. 1019a). — Luzon, Prov. Bataan, Berg Mariveles am 

 Lamao-Flusse (Merrill n. 3217a). 



Nota. Labello accedit ad D. tenellum, foliis forma est intermedia inter species juncifolias 

 et latifolias. — Tota planta \ 2 — 1 8 cm alta. 



63. D. parvulum (Oakes Arnes) Pfitz. — Acoridium parvulum Oakes Arnes in 

 Proceed. Biolog. Soc. Washington XIX. (1906) 146 et Orchidaceae II. (1907) ined. t. 21 

 II. 2. — Herba minuta; pseudobulbi monophylli, 4 — 10 mm longi, cataphyllis tubulosis vestiti. 

 Folia lineari-oblonga, obtusa v. truncata, 3-nervia, 2 — 3,5 cm longa, 2 — 2,5 mm lata. 

 Pedunculi cum spicis folia excedentes, pauciflori, 3 — 4 cm longi; spicae 1,5 — 2 cm 

 longae, bracteae acutae quam Ovaria longiores 1,5 mm longae. Sepala lanceolata acuta, 

 dorsale angustius acuminatum. Petala breviora ceterum aequalia. Labelli trilobi lobi 

 laterales oblongi, falcati, apice rotundati, erecti, gynostemium amplectentes, lobus inter- 

 medius oblongus, retusus, latior quam longus, mucronulatus ; callus minutus, utrinque e 

 lobis lateralibus in discum lobi intermedii confluens, gynostemium minutum, rostellum 

 productum. — Plantula parva ad 8 cm alta. Flores 4 mm diam., sepala 3 mm, petala 



2 mm longa, labellum vix 1 mm. — Octobri. — Fig. 38 iV r . 



Monsungebiet, Provinz der Philippinen: Luzon, Prov. Bataan, Berg Mariveles 

 am Lamao-Flusse (Merrill n. 3217b). 



Nota. D. tenello multo majori plerisque characteribus affine, folia tarnen in illa specie 

 non adeo abrupte in petiolum coarctata. 



6 4. D. venustulum (Oakes Arnes) Pfitz. — Acoridium venustulum Oakes Arnes 

 in Proceed. Biol. Soc. Washington XIX. (1906) 147, Orchidaceae II. ined. t. III. 3. — 

 Pseudobulbi fusiformes, monophylli, 2 cm longi. Folia lineari-oblanceolata, apice 

 rotundata, acutata, petiolata, 6 — 7,5 cm longa, 5 — 8 mm lata, petiolus 5 — 10 mm 

 longus. Pedunculus gracillimus, flexuosus, 10 — 12 mm longus, vaginulis infra spicam 

 vestitus, spica densiflora, multiflora disticha; bracteae Ovaria superantes, e basi lata 

 ovatae, obtusae, glumaceae, 2,5 mm longae. Sepalum dorsale lanceolatum, acutum, 

 lateralia bene latiora late ovata acuta. Petala lineari-lanceolata, leviter falcata, acuta 

 v. acuminata, 1-nervia. Labellum minutum leviter saccatum trilobum, lobi laterales 

 late ovati falcati obtusi, lobus intermedius emarginatus apiculatus , calli in disco 3 , in 

 sinu loborum lateralium et in basi intermedii ante sacculum ; gynostemium minutissimum, 

 rostellum protensum. — Flores minuti intense lutei, sepala 3 mm longa, petala aequi- 

 longa, sepala lateralia 1 ,5 mm, dorsale et petala 1 mm lata, labellum 1 mm longum, 

 2 mm latum. — Maio. — Fig. 38 Z7. 



Monsungebiet, Provinz der Philippinen: Luzon, Prov. Benguet ; Berg 

 S.Thomas (Eimer n. 6273, Jagor n. 846!). 



65. D. strictiforme (Oakes Arnes) Pfitz. — Acoridium strictiforme Oakes Arnes 

 in Proceed. Biol. Soc. Washington XIX. (1906) 147, Orchidaceae II. ined. t. 21, III. 3. — 

 Pseudobulbi fusiformes, dense aggregati, sicci rugosi, monophylli, 1 — 1,5 cm longi. Folia 

 lineari-oblonga, brevi-petiolata (petiolus 3 mm longus), acuta, coriacea, trinervia, 2,5 — 4 cm 



