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Pachystoma

Pachystoma Blume

An Indo-Malesian genus of 2-5 species of terrestrial orchids, Pachystoma is represented in India by two species , both found in Kerala.

1. Pachystoma hirsutum ( Joseph & Vajravelu) Sathis & Manilal , Kew Bull. 42 (4): 942. 1987.

Eulophia hirsuta Joseph & Vajravelu , Bull . Bot. Surv. India 17(1-4) : 192 . 1975(1978) .

Ipsea malabarica auct. non (Rchb.f) J.D. Hook .: Abraham & Vatsala 1981 : 269.

Joseph 7 Vajravelu described thier Eulophia hirsuta based on collection from Karasuryamala ,Palghat . Had they seen the number of pollinia (eight) in their specimen they would not have made the mistake of placing in in Eulophia where the pollinia number is two .

Occurrence : Trivandrum , Idukki , Palghat Districts.

Distribution : Regional Endemic (Kerala (type) and Tamil Nadu).

2. Pachystoma pubescens Bl., Bijdr. 376. Pl. 29. 1825; Seidenfaden 1986: 54; Joseph 1987: 20 .

Apaturia senilis Lindl ., Gen. Sp. Orch. 130. 1831.Pachystoma senile (Lindl) Rchb.f. , Bonplandia 3: 251 . 1855; J.D. Hook . 1890 815; Fischer in Gamble 1928 : 1426 ; Joseph 1982 : 19.

Blume described this species after the collection from Java.

Occurrence : Trivandrum , Idukki, Palghat Districts.

Distribution : Indo-Malesia .

 

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