Aporum capitellatoides (J.J.Sm.) Rauschert, 1983

Dendrobium capitellatoides collected first time from Muntok, Bangka island by J. J. Smith at year 1917. He said this orchid near Dendrobium capitellatum, but with shorter stem, much more compressed leaves, larger flowers, a triangular dorsal sepal. etc (J.J. Sm note in description 1917).

J. B. Comber in Orchids of Sumatra, 664 (2011), found  this species in Bandar Baru, near Medan Brastagi road, north sumatra at 760 m above sea level.

Our specimen come from Bengkulu highland at slope Barisan hill series at c. 800-1200 m above sea level.

Homotypic Synonyms:

Dendrobium capitellatoides J.J.Sm., Bull. Jard. Bot. Buitenzorg, II, 25: 36 (1917).
Aporum capitellatoides (J.J.Sm.) Rauschert, Feddes Repert. 94: 438 (1983).


Specimen A

Aporum capitellatoides (J.J.Sm.) Rauschert

Aporum capitellatoides (J.J.Sm.) Rauschert

Aporum capitellatoides (J.J.Sm.) Rauschert

Aporum capitellatoides (J.J.Sm.) Rauschert

Specimen B

Flores médiocres, nutantus, virescenti vel flavescenti albi

Inflorescentiae ad nodos superiores caulium, fasciculatae, squamis siccis ad basin, flores 1 — 2 simultanée gignentes.

Plant shorter stem, much more compressed leaves

Aporum capitellatoides in situ, a few flowers was rotten.

Specimen C

Dendrobium capitellatoides J.J.Sm.

Dendrobium capitellatoides J.J.Sm.

Dendrobium capitellatoides J.J.Sm.

Dendrobium capitellatoides J.J.Sm.

Dendrobium capitellatoides J.J.Sm.

Our specimen come to south west highland in main land Sumatra, and already axaming and valid with the original description Dendrobium capitelloides.  Have a bit differencies with photo specimen from north sumatra  made by J. B. Comber in book Orchid of Sumatra. Our specimen pure white to pale, no have purple strip like J. B. Comber had. It is valid with decription with sentence "Flores médiocres, nutantus, virescenti vel flavescenti albi, interdum pallide purpureo striati ....".

Following below I put the original description, with many hope my friend can determine also this species from their collection. Our specimen taken in July 2011 at slope Bukit Barisan, and flowering at cultivation a few week later on September 22, and my friend Leicneagra capture this orchid as photo below, and I determine as Aporum capitelloides on October 5, after leicneagra give all measurement data.

Basionym

Bull. Jard. Bot. Buitenzorg, II, 25: 36, 1917

Distribution :

Endemic Sumatra

Munton, Bangka Island (Kornasi, J. J. Smith)

Bandar Baru, North Sumatra (J. B. Comber)

Curup, Bengkulu highland (Leicneagra, Tun Jang)

42 SUM

Lifeform: 

Pseudobulb epiphyte

Post 05102011 06:00 PM