Coelogyne rochussenii de Vriese

Coelogyne rochusseni de Vriese, Illustr. Orch. [t. 2. et t. 11. f. 6].

Coelogyne rochusseni de Vriese, Photo by Michael D. Richard

its native range is Peninsula Thailand to Malesia.

Latin Name: 

Coelogyne rochusseni de Vriese

Family: 

Orchidaceae Juss.

Synonym:

Coelogyne macrobulbon Hook.f.

Coelogyne plantaginea Lindl.

Coelogyne steffiensii Schltr.

Coelogyne stellaris Rchb.f.

Pleione macrobulbon (Hook.f.) Kuntze

Pleione plantaginea (Lindl.) Kuntze

Pleione rochussenii (de Vriese) Kuntze

English Name:

Rouchussen's Coelogyne (Dutch governor-general of the Dutch East Indies in the mid-19th century)

Description: 

With 3.4 to 1.4" between each, cylindric, narrow, strongly furrowed pseudobulb carrying 2, oblanceolate to obovate, rounded and slightly acuminate, gradually narrowing below into the 5 cm long, petiolate base leaves and blooms in the winter in Singapore cultivation on a basal, heteranthous, to more than 45 cm long, pendant, racemose inflorescence arising on a mature pseudobulb with brown basal bracts with up to 40 fragrant, lemon-scented, simultaneously opening flowers. The flowers semi-close each night and reopen in the morning with the sun's arrival.

Distribution:

Borneo, Jawa, Malaya, Maluku, Philippines, Sulawesi, Sumatera, Thailand.

Ecological:

In lowlands often on trees overhanging rivers at elevations up to 1500 m as a medium sized, hot to cool growing epiphyte and occasional lithophyte.

Flowering times:

Bloome in the winter.

Flower size:

6.3 cm

Cultivation:

Plants are usually grown in baskets. Plant grows in intermediate to warm temperatures with partial shade. Water regularly through the year. Pot in a well drain medium. Pot in a plastic or clay pot with a mix of fine fir bark, tree fern fibers, and perlite or pot in New Zealand sphagnum moss.

Typus:

Oct 1, 1990 Scortechini, B. [s.n.], Malaysia K000078756 syntype

Dr. King's Collector [6794], Malaysia K000078757 syntype

Reference: 

- theplantlist.org

- https://www.ipni.org/n/624033-1

- http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:624033-1.

-  http://www.orchidspecies.com/coelrochusseni.htm.

- https://orchids.fandom.com/wiki/Coelogyne_rochussenii