Ophioglossum gujaratense, a new species from Gujarat State, India
Author
Patil, Sachin M.
Author
Kachhiyapatel, Ronak N.
Author
Patel, Ravi S.
Author
Rajput, Kishore S.
text
Phytotaxa
2018
2018-06-07
351
4
273
280
http://dx.doi.org/10.11646/phytotaxa.351.4.3
journal article
10.11646/phytotaxa.351.4.3
1179-3163
13707218
Ophioglossum gujaratense
SM Patil, RN Kachhiyapatel, R Patel & KS Rajput
sp. nov
.
,
Fig. 1
Type
:—
INDIA
.
Gujarat
:
Panchmahal district
,
Jambughoda
,
Dhanpuri
,
22°21.486’N
73°42.871’E
,
214 m
,
30 July 2017
,
S
.
M
.Patil,
R
.
N
.
Kachhiyapatel &
K
.
S
.Rajput 215
. (
Holotype
CAL
!;
Isotype
BARO
!,
SUK
!,
BSI
!,
MH
!)
.
Description
:
—
Plants less than
10 cm
, terrestrial, herbaceous;
rhizomorph
subterranean, sub-globose (young)–tuberose (mature), yellow–brown, bearing numerous fleshy roots (sometimes stoloniferous);
common stalk
0.5–1.5 cm
long, subterranean, white, glabrous, covered with leaf sheath (brown or white);
trophophylls
born close to the ground, slightly convex from above,
0.5–2 cm
long,
0.5–1.2 cm
broad, 1–5 per rhizomorph, ovate–elliptic or elliptic–lanceolate, acute–acuminate at apex, cuneate at base, margins entire, green–dark green, glabrous, tough, horizontally attached to substratum;
venation
reticulate;
fertile segment
2–8 cm
long, round–flat, pale green–green, arising from base of leaf;
strobili
0.5–2 cm
long, thick, apex acute–acuminate, green (young)–yellow (mature);
sporangia
5–15, arranged in two alternate rows;
spores
30–40 μm dia., trilete, exine verrucose.
Specimens Examined:—
INDIA
,
Gujarat
,
Panchmahal district
,
Jambughoda
,
Dhanpuri
,
22°21.486’N
73°42.871’E
,
124 m
,
30
th
July 2017
,
S
.
M
.Patil,
R
.
N
.
Kachhiyapatel &
K
.
S
.Rajput 215
(
BARO
)
BARO0070041
;
Gujarat
,
Panchmahal district
,
Jambughoda
,
Zand
,
22°22.264 N
73°40.022 E
,
154 m
,
4
th
August 2017
,
S
.
M
.Patil,
R
.
N
.
Kachhiyapatel &
K
.
S
.Rajput 234
(
BARO
)
BARO0070042
;
Gujarat
,
Panchmahal district
,
Halol
,
Shivrajpur
,
22°24.235 N
73°37.077 E
,
195 m
,
8
th
August 2017
,
S
.
M
.Patil,
R
.
N
.
Kachhiyapatel &
K
.
S
.Rajput 241
(
BARO
)
BARO0070043
.
FIGURE 1.
Ophioglossum gujaratense
.
A-D. Habit. E-I. Habit showing one, two, three, four and five trophophylls. J. A portion of rhizomorph, roots and common stalk showing leaf sheathing at base of common stalk. K. Enlarged portion of common stalk. L, M. Adaxial and abaxial view of trophophyll. N. Enlarged portion of trophophyll apex. O. Enlarged portion of spike stalk. P, Q. Young and mature strobilus. R. Enlarged portion of sporangia showing transvers dehiscence of sporangium. S–U. Proximal, distal and lateral view of trilet spore. Scale bars: A-5 mm, B-F, I-1 cm, G,H-5 mm, J-3 mm, K,O, R-0.5 mm, L-N-1 mm, P,Q-2 mm, S-U-10 μm. Photograph by Ronak Kachhiyapatel.
FIGURE 2
. Cladogram constructed by using Neighbor-Joining (NJ) method by using
rbcL
nucleotide sequence of
O. gujaratense
and other closely resembling species of
Ophioglossum
.
Botrychium lanuginosum
and
Helminthostachys zeylanica
were used as the outgroup. Bootstrap values are indicated on the tree branches.
Additional specimens examined:
—
Ophioglossum nudicaule
: INDIA-Madhya
Pradesh
,
Hoshangabad Dist.
Kesla, alt.
500m
.
,
22/07/1961
,
J
.
Joseph
(
MH
)
MH25305
;
Tamil Nadu
,
Rmnad Dist.
,
Erani forest
, alt.
100m
.
,
19/08/1964
,
R
.
D. Dixit
(
MH
)
MH39459
;
Tirunelvel Dist.
, way to falls, alt.
400m
.
,
25/07/1951
,
K
.
Subramanyan
(
MH
)
MH17579
;
Way
to
Five Falls
Courtallum,
Subramanyan
(
MH
)
MH8957
;
Coimbatore Dist.
,
Aliyar
, submergible area, alt
350m
.
,
27/07/1962
,
K
.
M
.
Selastive
(
MH
)
MH29569
;
Tiruchirappally Dt.
,
Narthamalai
,
Ramamurthy
(
MH
)
MH25940
.
Ophioglossum polyphyllum
:
YEMEN
,
J
.
Ma’lih
, c
10 km
SE of Qalansiyah
,
A
.
G
.
Miller
,
M
.
Bazara’a
,
L
.
Guarinao
&
N
.
Kassim
,
M10162
(
E
)
E00217751
;
TANZANIA
,
Kilimanjaro
: near
Mabungo
hill,
Kirua Vunjo
,
Kilimanjaro
,
A
.
Hemp
4483
(
UBT
)
UBT0000672
;
SAUDI ARABIA
,
In
arena deserti prope
Djeddam
,
W
.
Schimper
984
(
P
)
P00466556
;
INDIA
,
Maharastra
,
Junnar
near
S
.
T
.
Bus station
,
13
th
August 1964
K
.
Hemadri
99630
(
BSI
)
BSI92046
;
INDIA
,
Maharastra
,
Shahanur
,
Narnala
,
Akot
,
25
th
June 1978
S
.
Y
.
Kamble
153831
(
BSI
)
BSI106513.111
.
Ophioglossum parvifolium
:
India-Maharashtra
,
Satara Dist.
, along the way of
Kas
platue, alt.,
1100 m
.,
05/08/2014
,
S
.
M
.Patil 2003
(
BARO
)
BARO70040
;
Gujarat
,
Panchmahal district
,
Jambughoda
,
Zand
,
22°22.264 N
73°40.022 E
,
154 m
,
4
th
August 2017
,
S
.
M
.Patil,
R
.
N
.
Kachhiyapatel &
K
.
S
.Rajput
,
38
(
BARO
)
BARO0070039
.
Phenology:—
Sterile phase
: June–July;
Fertile phase
: August–September
Etymology:—
The species is named after the
type
location,
i.e.
Gujarat state
,
India
.
Distribution:—
INDIA
,
Gujarat
: Dhanpuri (Jambughoda), Zand (Jambughoda), Shivrajpur (Halol)
Ecology:—
The species grows at the base of the hills and on hill slopes at
200—300 m
msl. It grows in association with
O. costatum
,
O. parvifolium
and
O. reticulatum
.
Conservation status:—
Ophioglossum gujaratense
is collected just from three localities
viz
. Dhanpuri and Zand, Jambughoda Wildlife Sanctuary and from Shivrajpur (Halol, Panchmahal district). A population of about 500—700 individuals per km
2
was found at each locality. However, other forested areas of the state are yet to be explored completely. Additionally, we assume that the species might be distributed in similar ecological conditions. Hence, more floristic explorations are needed to determine and document the full range of distribution of
O. gujaratense
. According to
IUCN (2012)
criteria, at present this species is considered as data deficient (DD).