Field Investigation
A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)


In order to get a better knowledge of the plant diversity of Gesneriaceae between China and Vietnam, during October 10th to October 23rd, 2017, a field survey group composed of two GCCC members, Dr. Wen Fang and Mr. Fu Long-Fei, and one key member of the Gesneriad Society, Dr. Stephen Maciejewski with the accompany of Dr. Do Van Truong from the Vietnam National Museum of Nature (VNMN) has done a fantastic field investigation around the mountain areas in North Vietnam.

During the field investigation, a great number of unrecorded species in Vietnam have been discovered, including a large number of suspicious species and flowering species. The high biodiversity of the gesneriads in Vietnam impressed the visitors deeply. Under the fast economic development, the expending demand for the natural resources and the destruction of the local environment has drawn significant influence on the plant conservation. A large part of the Gesneriaceae plants are endangered or threatened now. Dr. Maciejewski also made a suggestion on building a Gesneriaceae Conservation Center of Vietnam and has gone to further discussions with Dr. Do Van Truong.

This co-investigation lasted for 2 weeks and a total of 50 species out of 20 genera of gesneriads were founded, including suspicious species, new species and unidentified species. According to an incomplete statistic, there are approximately 5 new records of existed species and 4 new species. However, there are still more need to be investigated. Please see table 1.

           The most fantastic part of this journey was the rediscovery of Petrocodonbonii,which was firstly discovered in 1892 by a French missioner. After 125 years, we have again had the chance to appreciate the delicate beauty of the living collection of this rare endangered species, besides the herbarium specimens. 

          The followings are some wonderful Gesneriaceae in North Vietnam.


 Table 1 The list of Gesneriaceae from North Vietnam in this trip


/Genus

种的数量/Species number we collected

半蒴苣苔属/Hemiboea Clarke

4

尖舌苣苔属/Rhynchoglossum Bl.

1

盾座苣苔属/Epithema Bl.

1

芒毛苣苔属/Aeschynanthus Jack

4

线柱苣苔属/Rhynchotechum Bl.

2

喜鹊苣苔属/Ornithoboea Parish ex C.B.Clarke

2

异裂苣苔属/Pseudochirita W.T. Wang

1

报春苣苔属/PrimulinaHance

5

吊石苣苔属/LysionotusD.Don

5

汉克丽亚花属/HenckeliaSpreng.

3

钩序苣苔属/Microchirita (C.B. Clarke) Y.Z. Wang

3

石山苣苔属/PetrocodonHance

2

蛛毛苣苔属/Paraboea (Clarke) Ridley

3

BilloliviaD.J.Middleton

2

漏斗苣苔属/Raphiocarpus Chun

1

石蝴蝶属/PetrocosmeaOliv.

1

长蒴苣苔属/Didymocarpus Wall.

5

紫花苣苔属/Loxostigma Clarke

2

马铃苣苔属/OreocharisBenth.

2

圆唇苣苔属/Gyrocheilos W.T. Wang

1

总数/Total

50

 


A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)
Fig. 1  A species of Hemiboea  



A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)
Fig. 2  Pseudochirita guangxiensis (S.Z. Huang) W.T.Wang var. glauca Y.G. Wei & Yan Liu




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)

Fig. 3  Primulina jingxiensis (Yan Liu, W.B. Xu & H.S. Gao) W.B.Xu & K.F.Chung




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)

Fig. 4  A species of Henckelia Spreng. , similar to H. anachoreta (Hance) D.J. Middleton & Mich. Möller




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)
  Fig. 5  A  species of Microchirita (C.B. Clarke) Y.Z. Wang




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)

Fig. 6  A  species of Petrocodon Hance




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)

Fig. 7  A  species of Microchirita (C.B. Clarke) Y.Z. Wang




A Fantastic Gesneriads Discovery Journey for the GCCC Delegation in Vietnam(Part I)

Fig. 8  A  species of Primulina Hance