Bulbophyllum

Bulbophyllum affine Wall. ex Lindl. (W. Central Himalaya to Nansei-shoto: Assam, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Laos, Myanmar, Nansei-shoto, Nepal, Taiwan, Thailand, Vietnam, West Himalaya as per POWO)

    

Bulbophyllum ambrosia (Hance) Schltr. (Nepal to S. China and Indo-China: Assam, China South-Central, China Southeast, Hainan, Laos, Nepal, Vietnam as per POWO)

Bulbophyllum careyanum (Hook.) Spreng. (Himalaya to China (Yunnan) and Indo-China: Andaman Is., Assam, Bangladesh, China South-Central, East Himalaya, India, Myanmar, Nepal, Thailand, Vietnam, West Himalaya as per POWO)

Bulbophyllum crassipes Hook.f. (SW. & NE. India, Sikkim to China (S. Yunnan) and NW. Peninsula Malaysia: Andaman Is., Assam, Bangladesh, China South-Central, East Himalaya, India, Laos, Malaya, Myanmar, Thailand, Vietnam as per POWO)

Bulbophyllum delitescens Hance (Assam to S. China and N. Indo-China: Assam, China South-Central, China Southeast, Hainan, Laos, Myanmar, Tibet, Vietnam as per POWO)

Bulbophyllum fimbriatum (Lindl.) Rchb.f. (SW. India as per POWO)

Bulbophyllum fischeri Seidenf. (S. India, Sri Lanka, S. Indo-China: Cambodia, India, Sri Lanka, Vietnam as per POWO)

Bulbophyllum fuscopurpureum Wight (India (Nilghiri Hills) as per POWO)

Bulbophyllum gopalianum Sâwmlianâ, M., K. Gogoi, J.S. Jalal and P. Kumara (Mizoram)

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Bulbophyllum khasyanum Griff. (E. Himalaya to China (Yunnan) and Indo-China: Assam, China South-Central, East Himalaya, Myanmar, Thailand, Vietnam as per POWO)
 

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Bulbophyllum leopardinum (Wall.) Lindl. ex Wall. (Himalaya to China (S. Yunnan) and Indo-China: Assam, China South-Central, East Himalaya, India, Laos, Myanmar, Nepal, Thailand, Vietnam, West Himalaya as per POWO)

   

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Bulbophyllum lobbii subsp. siamense (Rchb.f.) Mangal (Arunachal Pradesh to Indo-China, Borneo (Sabah), Philippines (Luzon): Assam, Bangladesh, Borneo, Cambodia, East Himalaya, Myanmar, Philippines, Thailand as per POWO)

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Bulbophyllum moniliforme E.C.Parish & Rchb.f. (Central Nepal to Indo-China: Assam, Cambodia, East Himalaya, Laos, Myanmar, Nepal, Thailand, Vietnam as per POWO)

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Bulbophyllum mysorense (Rolfe) J.J.Sm. (India (Karnataka, Tamil Nadu) as per POWO)

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Bulbophyllum odoratissimum (Sm.) Lindl. ex Wall. (Nepal to S. China: Andaman Is., Assam, Cambodia, China South-Central, China Southeast, East Himalaya, India, Laos, Myanmar, Nepal, Thailand, Tibet, Vietnam as per POWO)

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Bulbophyllum polyrrhizum Lindl. (Uttarakhand to China (S. Yunnan) and Indo-China: Assam, China South-Central, East Himalaya, India, Myanmar, Nepal, Thailand, West Himalaya as per POWO)

        

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Bulbophyllum proudlockii (King & Pantl.) J.J.Sm. (S. India (as per POWO))

  

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Bulbophyllum purpureofuscum J.J.Verm. (Nepal to China (Yunnan): Assam, China South-Central, East Himalaya, Myanmar, Nepal as per POWO)

     

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Bulbophyllum reptans (Lindl.) Lindl. ex Wall. (Himalaya to Hainan: Assam, Bangladesh, China South-Central, China Southeast, East Himalaya, Hainan, India, Laos, Myanmar, Nepal, Thailand, Tibet, Vietnam, West Himalaya as per POWO)

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Bulbophyllum rheedei Manilal & Sath.Kumar (India (Kerala) as per POWO)

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Bulbophyllum rolfei (Kuntze) Seidenf. (Nepal to China (W. Yunnan) and N. Myanmar: Assam, China South-Central, East Himalaya, Myanmar, Nepal as per POWO)

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Bulbophyllum rosemarianum Sath.Kumar, P.C.S.Kumar & Saleem (India (Kerala) as per POWO)

               

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Bulbophyllum roseopictum J.J.Verm. (Nepal to China (Yunnan) and N. Indo-China: Assam, Bangladesh, China South-Central, East Himalaya, Myanmar, Nepal, Thailand, Vietnam, West Himalaya as per POWO)

       

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Bulbophyllum roxburghii (Lindl.) Rchb.f. (E. Nepal to Bangladesh: Assam, Bangladesh, East Himalaya, Nepal as per POWO)

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Bulbophyllum scabratum Rchb.f. ? (Nepal to S. China and Indo-China: Assam, Bangladesh, China South-Central, China Southeast, East Himalaya, Laos, Myanmar, Nepal, Thailand, Tibet, Vietnam as per POWO)

 

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Bulbophyllum sterile (Lam.) Suresh (Nepal to India and Myanmar: Bangladesh, East Himalaya, India, Myanmar, Nepal as per POWO)

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Bulbophyllum sterile or Bulbophyllum rosemarianum ?

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Bulbophyllum striatum (Griff.) Rchb.f. (Nepal to China (SE. Yunnan) and Indo-China: Assam, Bangladesh, China South-Central, East Himalaya, India, Myanmar, Nepal, Thailand, Vietnam as per POWO)

     
  

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Bulbophyllum thaiorum J.J.Sm. (Bhutan to China (Yunnan) and Indo-China: China South-Central, East Himalaya, Myanmar, Thailand, Vietnam as per POWO)

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Bulbophyllum tremulum Wight (SW. India as per POWO)

  

 

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Bulbophyllum trichocephalum (Schltr.) Tang & F.T.Wang (Nepal to S. China and Indo-China: Andaman Is., Assam, Cambodia, China South-Central, China Southeast, East Himalaya, India, Laos, Myanmar, Nepal, Thailand, Tibet, Vietnam as per POWO (Bulbophyllum odoratissimum var. odoratissimum) )

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Bulbophyllum umbellatum Lindl. (W. Central Himalaya to Taiwan and Indo-China: Assam, China South-Central, East Himalaya, India, Laos, Myanmar, Nepal, Taiwan, Thailand, Tibet, Vietnam, West Himalaya as per POWO)

  

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Bulbophyllum wallichii Rchb.f. (Himalaya to Indo-China: Assam, China South-Central, East Himalaya, Laos, Myanmar, Nepal, Thailand, Vietnam, West Himalaya as per POWO)

   

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Bulbophyllum species- Sailam, Mizoram
 

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Bulbophyllum Thouars, Hist. Orchid.: t. 3 (1822), nom. cons.

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Bulbophyllum yoksunense

Bulbophyllum is the largest genus in the orchid family Orchidaceae.
With more than 2,000 species, it is also one of the largest genera of  flowering plants, exceeded only by Astragalus. This genus is abbreviated in the trade journals as Bulb.
Phylogeny
This genus was first described by Louis-Marie Aubert du Petit-Thouars (botanical abbreviation Thouars) in his book Histoire particulière des plantes orchidées recueillies sur les trois Iles Australes d’Afrique, de France, de Bourbon et de Madagascar, describing 17 Bulbophyllum species. There are now more than 2,800 records (accepted names and synonyms) for this genus. This large number and the great variety of its forms make the genus a considerable challenge for taxonomists: 120 sections and subgenera have been listed. The scientific name has been derived from the Latin word bulbus (bulb-like) and the Greek word phyllon (leaf), referring to the pseudobulbs on top of which the leaf is growing.
The center of diversity of this genus is in the montane forests of Papua New Guinea (more than 600 species) which seems to be the evolutionary homeland, though the genus is pantropical and widespread, occurring in Australia, Southeast Asia (with over 200 species in Borneo), India, Madagascar (with 135 species, some endemic), Africa and in tropical central and South America.
Structure
The general characteristics for this genus are : single-noded pseudobulbs, the basal inflorescence and the mobile lip. This genus covers an incredible range of vegetative forms, from tall plants with cane-like stems, to root climbers that wind or creep their way up tree trunks. Other members are pendulous epiphytes (growing on other plants), and quite a number that have developed succulent foliage to a greater or lesser degree. Some species are lithophytic. One species has almost become leafless and uses its pseudobulbs as the organs of
photosynthesis.
These orchids with a sympodial growth have rhizomatous stems with often angled pseudobulbs. The thin to leathery leaves are folded lengthwise.
Pollination
Many Bulbophyllum species have the typical odor of rotting carcasses, and the flies they attract assist in their reproduction through pollination.
The erect to pendent inflorescence arises laterally from the base of the pseudobulb. The flower form has a basic structural blueprint that serves to identify this genus. But this form can be very diverse : compound or single, with few to many flowers, with the resupinate flowers arranged spirally or in two vertical ranks. The sepals and the petals can also be very varied : straight or turned down, without footstalk or with a long claw at the base. They are often hairy or callous. There are two to four hard and waxy pollinia with stipes present or absent. The fruits are beakless capsules.
SOURCE: WIKIPEDIA !

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Indeed interesting …
To me, the most interesting point is someone digging into this chaos.
Not much is discussed in this regard; and rarely such matter is put in black and white.
Though not knowing the plants you mentioned, it is getting clearer that botanical name alone may not suggest a species, unless accompanied by the author citation.
Thank you very much for the eye-opening post.

Sorry, two different persons named the last one with a single species name and a third person made a new combination.
One name is based on other.
As usual, I am poor in mathematics…