Peristylus - Blume


An Indo-Malesian genus of about 60-70 species of terrestrial orchids, Peristuls is represented in Inida by 28 species. Seven species are found in Kerala.

1. Peristylus aristatus Lindl., Gen. Sp. Orch. 300. 1835; Fischer in Gamble 1928 : 1474; Seidenfaden 1977: 35 ; Abraham & Vatsala 1981 : 246.

Habenaria aristata (Lindl.) J.D. Hook . in Trimen , Cat. Ceylon Pl. 91: 1885 ; 1890 : 158,pro parte.

This species was described by Lindley based on Macrae's collection from Sri Lanka . Wight collected it from Pulney Mountains. A very characteristic species with a very peculiar , thin , 3-lobulate transversal ridge at the base of lip.

Occurrence : Trivandrum , Pathanamthitta , Idukki and Palghat districts .

Distribution : Southern India (kerala, Karnataka, Tamil Nadu ) and Sri Lanka .

2. Peristylus densus (Lindl.) Santapau & Kapadia , Journ . Bombay Nat. Hist. Soc. 57: 128 . 1960 ; Rathakrishnan 1971: 5; Seidenfaden 1977: 32 ; Abraham & Vatsala 1981: 243.

Coeloglossum densum Lindl., Gen. Sp. Orch. 302. 1851: t. 1702 .

platanthera stenostachya Lindl. ex Benth .,Hooker's J. Bot. Kew Misc. 7: 37. 1855.

Habenaria stenostachya (Lindl. ex Benth.) Kraenzl., Orch. Gen. Sp. 502 . 1901 ; Fischer in Gamble 1928 : 1474.

Peristylus xanthochlorus Blatt . & McCann , J. Bombay Nat. Hist. Soc. 35 : 733. 1932 .

This species was originally described by Lindley based on Wallich's collection from Sylhet in Bangladesh.

Occurrence : Trivandrum , Idukki Districts.

Distribution : India , Bangladesh to Burma , Thailand , Cambodia , Vietnam and China .

3. Peristylus goodyeroides (D. Don) Lindl. , Gen . Sp. Orch. 229. 1835; Fischer in Gamble 1928: 1475; Santapau & Kapadia 1966 : 52 ; Rao 1966 : 225 ; Kammathy et al. 1967 : 230 ' Seidenfaden 1977: 53 ; Abraham & Vatsala 1981 : 249 ; Joseph 1982 : 71 & 1987: 97 .

Habenaria goodyeroides D. Don , Prodr. Fl. Nepal . 25 . 1825 ; J.D. Hook . 1890 : 161 (excl. syn . H. grandis ).

This was originally described based on Wallich's collection from Nepal .

Occurrence : Trivandrum , Quilon , Idukki , Palghat and Kannur Districts .

Distribution : Indo -Malesia .

4. Peristylus lawii Wight , Ic. Pl . Ind. Or. 5 (1) : 12 .t. 1695 . 1851 ; Santapau & Kapadia 1966 : 53 : Abraham & Vatsala 1981 : 249 : Joseph 1982 : 73 & 1987 : 101 .

Habenaria lawii (Wight) J. D. Hook ., Fl. Brit. Ind. 6: 162 . 1890.

Described by Wight based on Law's collection from Concan and Mysore , Peristylus lawii is related to Peristylus stockii (J.D. Hook.) Kraenzl. but can be distinguished by the mostly clustered leaves and lip with a globose spur.

Occurrence : Trivendrum , Wayanad Districts.

Distribution : National Endemic (From Western Ghats to Bihar).

5. Peristylus plantagineus Lindl., Gen.sp. Orch. 300. 1835; Wight 1851 : t. 921 ; Fischer in Gamble 1928 : 1475 ; Santapau& Kapadia 1966: 51.

Habenaria wightii Trimen, Cat. Ceylon pl. 91 . 1885 ; J.D. Hook . 1890 : 162 .

Lindley described this species based on Macrae's collection from Sri Lanka .

Occurrence : Travancore , Malabar ; Wayanad District .

Distribution : India and Sri Lanka .

6. Peristylus richardianus Wight, Ic. Pl. Ind., Or. 5 (1) : 12 . t. 1697. 1851 : Fischer in Gamble 1928 : 1474 ; Seidenfaden 1977 : 39 ; Joseph 1982 : 74 & 1987 : 102 .

Habenaria bicornuta J.D. Hook ., Fl. Brit . Ind. 6: 156 . 1890 .

Wight described this species based on collections from 'Neilgherries;. The characetristic raised sidelobes of the lip remind the head of an antelope . It was named in honour of A . Richard who described many orchids from Nilgiris .

Occurrence : Idukki District.

Distribution : South India (Kerala, Tamil Nadu) and Nepal .

7. Peristylus spiralis A. Rich ., Ann. Sci. (ser. 2.) 15 : 69 .T. 2B . 1841; Wight 1851: 12 .T. 1696; Fischer in Gamble 1928 : 1478; Santapau & Kapadia 1966: 49 ; Joseph 1982 : 73 & 1987 : 101 .

Habenaria torta J.D. Hook ., Fl. Brit. Ind. 6 : 159 . 1890 .

Described by A. Richard based on a collection from ' Avalanche ' in Nilgiris .

Occurrence : Wayanad District .

Distribution : South India (Karnataka , Kerala and Tamil Nadu) and Sri Lanka ).

 

 

 
 

 

Orchid Kerala India - Conceived, Crafted and Cared for by Jithin & Sinu.