Tuesday, 17 November 2015 15:45

Dendrobium hercoglossum Featured

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LIGHT
moderate to bright light
WATER
Treat same as the Chinese Dendrobium
HUMIDITY
Treat same as the Chinese Dendrobium
TEMPERATURE
BLOOM SEASON
Slightly fragrant, blooms summer into fall

 

Found in Myanmar, Thailand, Malaysia, Laos, Cambodia, Vietnam, southern China and the the Philippines in broadleaf, evergreen, lowland forests and primary montane forests at elevations of 50 to 1200 meters on trees along streams as a large sized, hot to cool growing epiphyte. 

Water and fertilizer should be reduced for 2 to 3 months in the winter and resumed only with the onset of new growth in the spring.

 

CULTIVATION

The International Orchid Register

Dendrobium hercoglossum

Dendrobium
Epithet
hercoglossum
Synonym Flag
This is not a synonym
 
 

SOURCE: The International Orchid Register

 

The International Orchid Species Encyclopedia

Common Name The Rampart Lip Dendrobium - In Thailand - Ueang dok ma khuea - In China Chong Chun Shi Hu

Flower Size 1" [2.5 cm]

Found in Myanmar, Thailand, Malaysia, Laos, Cambodia, Vietnam, southern China and the the Philippines in broadleaf, evergreen, lowland forests and primary montane forests at elevations of 50 to 1200 meters on trees along streams as a large sized, hot to cool growing epiphyte with slender, subclavate, clustered stems that are almost totally enveloped by leaf sheaths and carrying distichous, linear-lanceolate, obtusely and unequally bilobed apically leaves that flowers in spring though winter on a short to 1 1/2", axillary, 2 to 8 flowered raceme that arises from the nodes at or near the apex of the leafless or leafy stems with waxy, flat, showy, slightly fragrant flowers.

Water and fertilizer should be reduced for 2 to 3 months in the winter and resumed only with the onset of new growth in the spring.

Similar to D adunctum but differs mostly in that this one does not have wings on the column, D linguella which has the column wings but it has a much more open lip and D bifurcatum has no wings on the column but has an acute narrow lip and large oblong violet spots at the apex of the column,.

Synonyms

  • Callista annamensis Kraenzl. 1910
  • Callista hercoglossa (Rchb. f.) Kuntze 1891
  • Callista vexans (Dammer) Kraenzl. 1910
  • Dendrobium hercoglossum var. album S.J.Cheng & Z.Z.Tang 1984
  • Dendrobium poilanei Guillaumin 1925
  • Dendrobium vexans Dammer 1910
  • Dendrobium wangii C.L. Tso 1933
  • Goldschmidtia gracilis Dammer 1910

References

  • W3 Tropicos
  • Kew Monocot list
  • IPNI
  • Orchidaceae Monandre-Dendrobiinae Fr. Kraenzlin 1910
  • Contributions to the Knowledge of the Orchid Flora of Sumatra Schlechter 1911
  • Flora of Malaya Vol 1 Orchids Holttum 1957
  • The Orchids of Thailand Seidenfaden & Smitinand 1959 drawing fide
  • AOS Bulletin Vol 39 No 10 1970
  • Beautiful Thai Orchid Species Kamemoto & Sagarik 1975 photo fide
  • The Genera of Orchidaceae in Hong Kong Shiu-ying Hu 1977
  • Orchidiana Philipiniana Vol 1 Valmayor 1984
  • A Guide to Orchids of the World Hodgson, Paine & Anderson 1991 Photo good
  • The Orchids of Penninsular Malaysia Wood & Seidenfaden 1992 drawing/photo fide
  • Thai Orchid Species Rakpaibulsombay 1992 photo fide
  • The Manual Of Cultivated Orchid Species Bechtel, Cribb & Laurent 1992
  • Manual of Orchids Stewart 1995; Orchid Species Culture
  • Dendrobium Bakers 1996
  • Dendrobium and its Relatives Lavarack, Harris and Stocker 2000 photo fide
  • A Field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2001 photo fide
  • A to Z of South East Asian Orchid Species Vol 1 O'Byrne 2001 photo fide
  • AOS Bulletin Vol 71 No 2 2002 photo
  • Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003
  • Hainan Island Wild Orchid illustrations 2005 photo fide
  • A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo fide
  • Flora's Orchids Nash & La Croix 2005
  • The Dendrobiums H. P. Wood 2006 photo fide
  • Wild Orchids in Myanamar Vol 3 Tanaka 2007 photo fide
  • A Field Guide to the Orchids of China Singchi, Zhongjian, Yibo, Xiaohua and Zhanhuo 2009 photo fide
  • Flora of China Vol 25 Zhengyi, Raven & Deyuan 2009
  • The Atlas of Wild Orchids in Hainan Island, China Shenyan and Junmei 2010 photo fide
  • The Wild Orchids in Yunnan Xu Xiang Ye & Liu 2010 photos fide
  • Wild Orchids of Myanmar Hyan Tun [Mr Myanmar] 2014 Photo fide

SOURCE: The International Orchid Species Encyclopedia 

 

Orchid Wiki

Dendrobium hercoglossum is a species of genus Dendrobium

Description

Plant blooms from spring to winter with two to eight flowers. Flowers are fragrant and 2.5 cm wide.

Distribution

Plants are found growing on the trees in the montane forest of Thailand, Burma, Malaysia and Indochina at elevations of 600 to 1200 meters

Culture

Plant grows in cool to warm temperatures with medium amounts of light. Keep plant moist and fertilize during growth season. During winter reduce watering until new shoots appear. Grow in a well drained mix of sphagnum moss or medium fir bark.

Varieties

 

Dendrobium var hercoglossum albescens
Lip is white, sepals are white and petals are white

 

 

Naming

Common Names:The Rampart Lip Dendrobium

Synonym

  • Callista hercoglossa (Rchb. f.) Kuntze 1891
  • Callista vexans (Dammer) Kraenzl. 1910
  • Dendrobium hercoglossum var. album S.J.Cheng & Z.Z.Tang 1984
  • Dendrobium poilanei Guillaumin 1925
  • Dendrobium vexans Dammer 1910
  • Dendrobium wangii C.L. Tso 1933
  • Goldschmidtia gracilis Dammer 1910

 

SOURCE: Dendrobium hercoglossum on Orchids Wiki 

 

DISCUSSIONS

 

The following article was written for the Orchid Species Bulletin published by the Orchid Species Society, which is based in Brisbane, Queensland in December 2011.
Bear in mind that any cultivation notes refer to the sub-tropical conditions of Southern Queensland, Australia.

 

Dendrobium hercoglossum Rchb.f. was described by Heinrich Gustav Reichenbach in the Gardeners' Chronicle in 1886. The specific epithet comes from the Greek hercos (fence) and glossa (tongue) for the lip, which has a transverse barrier that divides it in two.

Den. hercoglossum is a medium-sized plant with clustered, slender stems that are 20-35 (-57) cm long and 7 mm in diameter. The spindle-shaped stems are slender at the base and a little swollen toward the apex. They generally become pendulous as they lengthen. Howard Wood (2006) says that the stem sometimes grows for 2 years, producing 2 swellings, with the leaves falling and blooming on the recently grown portion. Each pseudobulb bears 4-6 narrowly linear, two-ranked leaves that are 5-10 cm long and 4-11 mm wide. The pseudobulbs produce several inflorescences from nodes along the upper portion. Inflorescences often emerge before the leaves drop so flowering can occur on the matured leafy or leafless stems. Each raceme bears 2-5 (-8) waxy flowers that last for about 2 weeks.

The showy flowers of Den. hercoglossum are 2.5 (-4) cm across and have rosy pink to bright magenta sepals and petals. The sepals and petals may be white at the base grading to light mauve toward the tips. Its lip is white, tinged with green or cream with mauve or magenta at the apex. The surface of the pouch-like lip is finely pubescent. The contrasting anther cap is dark purple to magenta. Sweetly fragrant, the flowers produce a scent like violets.

Often found on trees near streams, Den. hercoglossum grows between 600-1,260 m altitude. It is distributed from Malaya, south-eastern Thailand, Laos, Vietnam, Cambodia and south-western China. According to Howard Wood, reports of this species from Hong Kong refer to the related Den. aduncum Wall. ex Lindl. 

Den. hercoglossum is best grown under about 60-70% shade with high humidity during the warmer months. It can be potted in a small hanging pot or grown in a basket using a well-drained medium. It can also grow well if mounted on a cork slab or tree fern, particularly if humidity is high and daily watering can be given in summer. Regular applications of liquid fertiliser can also be given during active growth, with none or less at other times. During winter a cooler, drier rest can be given in keeping with its natural habitat. Potted plants may only need water once or twice a week during this period when it is not actively growing.

 

SOURCE: Dendrobium hercoglossum on Orchid Photos by Gary Yong Gee 

 

 

The species name for Dendrobium hercoglossum literally means fence-lip, and quite appropriate too. Look carefully and you will see a "fence" dividing the outer part of the lip (the pointed bit) and the inner lip. The flowers are produce sporadically throughout the year, but mainly in the Autumn. The canes are thin and long, and will often bend around under its own weight. It is found in south-east Asia, growing in the highlands.

 

SOURCE: Dendrobium hercoglossum page on INetGardens.com

 

 

Orchid Board - Most Complete Orchid Forum on the web ! > ORCHID DISCUSSIONS > Beginner Discussion >  How to mount Dendrobium Hercoglossum?

It's a very easy going plant and will do well in a pot or on a mount. It likes a lot of water during the warmer months and a bit drier in the Winter...but other than that...not the slightest bit fussy.

I water it nearly every day during the Spring and into the early Fall and then I back off on the watering to a couple of times a week. I don't remember what I have it potted in (it's been a couple of years since it's last repot) but I think it's a medium CHC w/some chopped sphag for extra moisture retention.

I have mine in a clay pot that I hang. It doesn't often produce keikis so it stays pretty neat. A rampant grower and a reliable bloomer if given enough light.

This pic was taken last Summer when it was just about done blooming.

 

 

Dokmai Dogma -Thoughts and Advice from a Tropical Botanical Garden in Chiang Mai, Thailand

In Chiang Mai in northern Thailand there are different orchids in blossom all year round. This morning the Thai Dendrobium hercoglossum opened its flowers here at Dokmai Garden. It is a bit late, but the rainy season this year was delayed 4-6 weeks. This epiphytic orchid demands water in the rainy season, but should be left alone in the dry season. Young flowers have not yet developed the  purple colours,  but they are still cute in their baby-blue. The dark purple operculum and the pointed lip are still characteristic.

Eric Danell

SOURCE: Dendrobium hercoglossum on Dokmai Dogma

 

The Plant Geek Chronicles

Today's in bloom is a Den. hercoglossum. I purchased this plant a couple years ago at the SEPOS show from Andy's Orchids, and although for some reason I sometimes kill stuff I buy from him, this plant has had no problems. Likely because it likes a drier winter, so my cycle of abuse & good care suits it just fine. Oh, wait, did I say that out loud?

Yes, well, Den. hercoglossum does indeed enjoy a slight rest in Winter, with less water and fertilizer, and slightly lower temperatures are also acceptable. In the Summer I put this plant outside in a medium bright location, and water nearly daily as it is mounted. 

 

SOURCE: Dendrobium hercoglossum on The Plant Geek Chronicles 

 

Native Orchids

 

 

 

Specific name : Dendrobium hercoglossum

Distribution : Thailand, China and Vietnam

Plant Size : 10 ~ 60 cm

Flower Size : 2.5 ~ 3.5 cm

Flowering Season : Spring ~ Early Summer

Longevity of Flowers : 20 ~ 25 days

Fragrance : Not fragrant

Sunlight : Strong

Difficulty of Cultivation : Easy

 

 

 
 

SOURCE: Dendrobium hercoglossum on Native Orchids

Photo credit: Lianfu Wang

 

 

VENDORS

Burleigh Park Orchids

A softcane type Dendrobium from Thailand. Best grown in a small pot or basket in a media that will stay damp but not wet, the plants should not be allowed to dry out completely. In winter, drier conditions should prevail. It is amenable to intermediate to warm conditions and should be grown in a sunny position with good ventilation.  

 

SOURCE: Dendrobium hercoglossum on Burleigh Park Orchids

 

Et Cetera

http://www.theplantlist.org/tpl/record/kew-57960 

 

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