Notes on the identity and status of two Legumes (Fabaceae: Papilionoideae) from India
Author
Krishnaraj, Moothedathu Venugopalan Nair
Author
Mohanan, Narayanan Nair
text
Phytotaxa
2012
2012-09-11
66
1
13
20
http://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.66.1.3
journal article
10.11646/phytotaxa.66.1.3
1179-3163
5065832
Mucuna pruriens
var.
hirsuta
(Wight & Arn.)
Wilmot-Dear (1987: 44)
Mucuna hirsuta
Wight & Arnott (1834: 254)
.
Type
:—
INDIA
. '
Peninsular India'
, without date,
Wight
750
(
lectotype
K
; isolectotypes
E
!
MH
!), designated by Wilmot- Dear 1987; see
figure 3
.
Mucuna pruriens
var.
thekkadiensis
Thothathri & Ravi Kumar (1997: 703)
,
syn. nov
.
Type
:—
INDIA
.
Kerala
:
Thekkady forest
,
Periyar Tiger Reserve
,
23 February 1996
,
Ravikumar
&
Muralidharan
535
A
(
holotype
MH
! isotypes
MUH
,
CAL
); see
figure 4
.
FIGURE 4
. Holotype of
Mucuna pruriens
var.
thekkadiensis
Thothathri & Ravikumar, Ravikumar & Muralidharan
535 A (MH). © Botanical Survey of India, Southern Circle, Coimbatore.
Distribution:
—Endemic to Western Peninsular
India
(compare also the note given below).
Specimens examined:
—
INDIA
.
Kerala
:
Palakkadu
,
Parambikulam
,
14 December 2007
,
Krishnaraj
61938
(
TBGT
)
;
Idukki
,
Ramakkalmedu
,
31 January 2012
,
Krishnaraj
71523
(
TBGT
)
;
Kottayam
,
Melukavu
,
850 m
,
11 December 1985
,
Luckose
1680
B
(
RHK
)
;
Kannur
,
Nedumpoil
,
550 m
,
27 February 1979
,
Ramachandran
61964
(
MH
)
;
Idukki
,
Vallakkadavu
, 4
th
mile,
29 October 2009
,
Renjith
&
Haridas
60974
(
TBGT
)
;
Idukki
,
Thekkady
,
850 m
,
16 November 1975
,
Vivekanandan
46680
(
MH
)
.
Note
:—Wilmot–Dear (1987: 44) designated a
lectotype
for
M. hirsuta
from the duplicates of Wight’s collections at the Kew herbarium, however published it as
holotype
. The Wight material at K falls into two major groups. The Wight specimens with Kew distribution numbers (KD) have been remounted, are poorly annotated and often represent post-1834 collections. The second collection is Wight’s own “top set” (Herb. Robert Wight Prop.), given to Kew just before his death, and including the duplicates of the ‘Prodromus
’
species. This top set at Kew is not as complete as Arnott's set at the Edinburgh herbarium (E). The “top set” at Kew is rather scrappily annotated, usually in pencil, often with minimal localities and few numbers. Some annotations are erased and substituted by Wight or later workers with similar handwriting. Therefore it is difficult to identify which are Wight’s Prodromus specimens at Kew (
Noltie 2005: 133
). However, according to
Noltie (2005: 131)
, ‘there has been a presumption against the use of the word ‘holotype’, but in some of Wight’s solo works, it seems reasonable to identify a specimen as the single one used by Wight in describing a new species. Knowingly or unknowingly, this is the reason why Wilmot-Dear designated
WC 750
at K as
holotype
of
M. hirsuta
, which qualifies as
syntype
(original material) following Art. 9.10 ICBN (
McNeill
et al
. 2006
). So there is no case to reject the choice made by Wilmot-Dear.