A revision of the genus Phoebe (Lauraceae) in the Indo-Burmese region
Author
Chakrabarty, Tapas
4, Botanical Garden Lane, Howrah - 711 103, West Bengal, India.
Author
Kumar, Anand
Central National Herbarium, Botanical Survey of India, Howrah - 711 103, West Bengal, India.
Author
Ghoshal, Partha Pratim
Central National Herbarium, Botanical Survey of India, Howrah - 711 103, West Bengal, India.
text
Phytotaxa
2023
2023-07-26
606
1
29
42
http://dx.doi.org/10.11646/phytotaxa.606.1.3
journal article
263473
10.11646/phytotaxa.606.1.3
03840c6e-ec64-4ff8-9960-56173fdd434e
1179-3163
8202297
5.
Phoebe lanceolata
(Nees)
Nees von Esenbeck (1836: 109)
.
Fig. 1B
Type:—
NEPAL
. Without locality, 1821, fl. & fr.,
Wallich
,
Numer. List No.
2599C
(
lectotype
designated here: K001116537, digital image!;
isolectotypes: CGE [2 sheets] n.v., LE n.v., OXF00146543N n.v., BM013718295, E00393289, E00393290, G-DC [G00693557, G00693559, G00693561], K001116536, MEL2390381, PH00016902, digital images!)
.
BANGLADESH
.
Sylhet
, s.d., fl. & fr.,
de
Silva
in
Wallich
,
Numer. List No.
2599A
(additional
syntypes
: CGE [3 sheets] n.v., LE n.v., BM013718294, E00393286, E00393287, G-DC [G00693501], K001116532, L.1814069, M0147191, MEL2390380, digital images!)
.
INDIA
. Hort. Bot. Calcutt., fl.,
Wallich
,
Numer. List No.
2599B
(additional
syntypes
: CGE [3 sheets] n.v., LE n.v., BM000888319, G-DC [G00693558], K001116533, K001116534, K001116535, digital images!)
.
Basionym:—
Ocotea lanceolata
Nees von Esenbeck (1831: 71)
.
Homotypic synonym:—
Persea lanceolata
(Nees)
Oliver (1880: 11
, sub t. 1316),
nom. illegit.
,
non
P. lanceolata
Lesquereux (1872: 308)
.
Heterotypic synonyms:—
Laurus lanceolaria
Roxburgh (1832: 309)
.
Type:—[
BANGLADESH
], fl.,
W. Roxburgh
s.n.
(
lectotype
designated here:
BM014605561
, digital image!;
isolectotype
:
MO-225220
, digital image!).
BANGLADESH
. Korelea & Chittagong, April–May, 1811, fl. & fr.,
W. Roxburgh
355
(additional original material:
BM014605560
[lower specimen],
MO-247600
, digital images!)
.
Ocotea lanceolaria
(Roxb.)
Voigt (1845: 309)
.
Phoebe lummaoensis
Gangopadhyay (2006: 148)
,
syn. nov.
Type:—
MYANMAR
.
Lummao
hills,
7 July 1890
, fr.,
J.C. Prazer
159
(
holotype
:
CAL0000033380
!;
isotypes
:
CAL0000033377
!,
CAL0000033378
!,
CAL0000033379
!).
MYANMAR
. Upper
Burma
, Kalay hills,
5 July 1894
, fr.,
J.C. Prazer
95
(
paratypes
:
CAL0000033376
!,
CAL0000033381
!)
.
Phoebe palghatensis
Gangopadhyay (2009: 146)
,
syn. nov.
Type
:—
INDIA
.
Kerala
,
Idukki dist.
,
Meenmutty
,
14 February 1982
, fl.,
C.N. Mohanan
73233
(
holotype
: CAL0000021978!; isotypes: MH00091604!, MH00091605!)
.
Trees
, (2–)
3–20 m
high; bud scale scars in dense rings around twigs; branchlets yellowish or greyish sericeous or puberulous when young, soon glabrous.
Leaves
more or less clustered at the ends of the twigs, narrowly oblong-elliptic, oblong to lanceolate-oblong or lanceolate-elliptic or occasionally narrowly obovate-oblong to obovate-elliptic, 7–25 ×
1.5–6.5 cm
, cuneate to acute or sometimes cuneate-attenuate or occasionally rounded to obtuse at base, often slightly decurrent at extreme base, acuminate to caudate (acumen or cauda
5–35 mm
long, acute) or rarely apiculate at apex, chartaceous to thinly coriaceous, glabrous above, sparsely greyish puberulous on major veins to glabrous beneath, green, brown, dark brown, dark reddish brown or blackish above when dry, paler and green to brown or coppery and often glaucous (not always) beneath; lateral veins slender, 6–12 pairs, prominent and flat above, raised beneath; tertiary veins obscure to prominent above, faint to prominent beneath; veinlets obscure to faint above, inconspicuous to prominent beneath; petioles
5–20 mm
long, glabrous.
Panicles
4–28 cm
long, 2–5-branched (sometimes apparently simple by reduction), 5–many-flowered; axis and branches sparsely puberulous to glabrous.
Flowers:
pedicels
3–6 mm
long, slender, glabrous; tepals ovate to suborbicular or broadly oblong, apiculate, 2.5–4 ×
1.8–2.5 mm
, glabrous outside, stamens
2–2.5 mm
long; staminodes ca.
1 mm
long; ovary ovoid or subglobose,
1.2–1.5 mm
long in diam.; style
1.3–2 mm
long; stigma discoid, lobulate.
Fruits
ovoid to ellipsoid or oblong-ellipsoid, 0.8–1.5 ×
0.5–1 cm
, fruiting pedicels
3–7 mm
long, not or slightly thickened, fruiting tepals
3–5 mm
long.
Local names:
—
Menda
(Bengali,
Bangladesh
),
Jakrikat
,
Jhankrikath
(Nepali).
Phenology:
—Flowering in December to June and fruiting in May to November.
Habitat:
—Common on ghats, semi-evergreen to evergreen and shola forests in peninsular
India
between
500– 1500 m
elevations; in tropical warm broad-leaved, subtropical and temperate forests on the Himalayas and foothills at
300–2900 m
elevations; reported to be common in evergreen and primary forests between
150–2300 m
elevations in northeast
India
,
Bangladesh
and
Myanmar
.
Distribution:
—
Bangladesh
,
Bhutan
,
China
,
India
,
Laos
,
Malaysia
,
Myanmar
,
Nepal
,
Thailand
, and
Vietnam
.
Specimens examined:—
BANGLADESH
.
Rangamati dist.
,
Sitapahar
west,
Jamai
chhara,
26 April 1997
, fl.,
A.M. Huq
10491
(L0106967).
Without
locality, fr.,
W. Griffith
,
Kew Distrib. No.
4258
(
CAL
)
.
BHUTAN
.
Dewangaree
hills,
April 1853
, fl.,
Simons
s.n.
(CAL herb. acc. nos. 385047, 385048)
.
CHINA
.
Yunnan
,
Szemao forest
, s.d., fl.,
A. Henry
11734
(L.1814057).
INDIA
.
Assam
:
Kamrup dist.
,
Baradhoba
, five miles south of
Singra
,
26 June 1964
, fl.,
A.S. Rao
39159
(
ASSAM
); Five mile north of
Ukiam
, on road to Bamunigaon,
22 June 1965
, fl.,
A.S. Rao
39050
(
ASSAM
).
Gara reserve
- Giang bazaar,
24 May 1957
, immat. fr.,
G. Panigrahi
9505
(
ASSAM
, CAL)
.
Kerala
:
Idukki dist.
,
Kulamavu
,
30 December 1983
, fl.,
A.G. Pandurangan
62579
(CAL0000021979, MH00091591, MH00091603); Meenmutty dam area, 25 February, fl.,
C.N. Mohanan
77977
(CAL0000021982, MH).
Palakkad dist.
,
Singamparai RF
,
26 May 1979
, fl.,
E. Vajravelu
62829
(CAL, MH00091610, MH00091611);
Karapara river
side,
1 March 1975
, fl.,
E. Vajravelu
46130
(MH00091590, MH00091598).
Quilon dist.
, Pamba dam - Kakki dam,
15 March 1980
, fl.,
K. Vivekananthan
66216
(CAL0000021980, MH)
.
Meghalaya
:
Garo
hills,
Phulbari
, fl.,
April 1950
,
Thakur Rup Chand
3111
(L.1814062)
.
Nagaland
:
Naga
hills,
Koio
,
May 1895
, fl.,
Watt
11782
(U.1417549)
.
Odisha
:
Mayurbhanj dist.
,
Simlipal RF
,
30 November 1979
, immat. fr.,
A.R.K. Sastry
&
G.P. Singh
12388
(CAL [4 sheets])
.
Sikkim
:
Without
locality, s.d., fl.,
T. Thomson
s.n.
(CAL herb. acc. no. 385009, 385010, L.1814066); ibid., fl.,
J.D. Hooker
s.n.
(CGE, G-DC [G00693504, G00693552], L.1814068)
.
Tripura
:
Munpui
,
2 April 1941
, fl.,
K. Biswas
5082
(
CAL
)
.
West Bengal
:
Darjeeling dist.
,
Chorubuttee
,
12 June 1870
, fr.,
C.B. Clarke
12021B
(
CAL
)
;
ibid.,
13 June 1870
, fr.,
C.B. Clarke
12087 C
(
CAL
)
.
Jalpaiguri dist.
,
Apalehand
,
Kathanbari
,
24 April 1962
, fl.,
S.K. Mukerji
5495
(
CAL
)
;
Udlajhora
,
22 May 1975
, fl.,
J.K. Sikdar
288
(
CAL
)
.
Gorumara
,
1 June 1949
, fr.,
V. Narayanaswami
3133
(
CAL
)
.
LAOS
.
Khammouane province
,
Nakay dist.
,
Khet Chatchan Resettlement area
,
10 March 2006
, fl.,
B. Svengsuksa
et al. BT 262
(L.1814048)
.
MALAYSIA
.
Pahang
,
Tahan Woods
,
Kuala Teku
,
Rocky
banks of
S. Teku
,
20 February 1968
, fl.,
T.C. Whitmore
FRI 4770
(L.1814078)
.
MYANMAR
.
Chin
hills,
Kanpetlet
,
April 1939
, fl.,
F.G. Dickason
8615
(L.1814060)
.
NEPAL
.
Tumbey
to
Waleug Basi
,
28 April 1965
, fl.,
M.L. Banerji
et al. 3382
(L.1814064).
Dang
-
Deokhuri dist.
,
Peepal Dauda
,
21 April 1988
, fl.,
P.R. Sakia
et al. 9273
(L.1814063)
.
THAILAND
.
Pang Mapha
,
27 February 1968
, fl.,
B. Hanseen
&
T. Smitinand
12746
(L.2066792)
.
VIETNAM
.
Ninh Binh province
,
Cuc Phuong National Park
,
13 July 1999
, fr.,
N.M. Cuong
264
(L.1814090)
.
Notes:
—The following field numbers were cited in the protologue of
Ocotea lanceolata
: Wall. Cat.
n. 2599 A–E. It was further specified: “Crescit in Sillet (F.D.) et e Sillet in Hortem Calcutta numillata; in Napalia (Wallich a 1820 et 1821).” They correspond to the Wallich, Numer. List Nos. 2599A, 2599B and 2599C. Of the available specimens which we could examine, Wallich 2599C from
Nepal
(K001116537) is the best specimen with flowers and fruits and the same is selected here as the
lectotype
of the name. As regards
Laurus lanceolaria
, there are four collections of Roxburgh at BM and MO from
Bangladesh
(BM014605560, BM014605561, MO-247600, MO-255220). The MO specimens bear the label with the annotation “Ex Herbario Musei Britannici” and it indicates that both MO specimens were distributed from BM. The specimen BM014605561 bears two flowering twigs and two ticket size labels with the name “
Laurus
” and “Sundegool” in Roxburgh’s handwriting while there is no annotation by Roxburgh on the other BM specimen BM014605560. It may be noted that Roxburgh stated in the protolouge: “Sundhigool, the vernacular name in Silhet where it is indigenous”. Although, there are two original
Flora Indica
drawings of Roxburgh available at CAL and K, we have prioritized the specimen over the drawing for
lectotype
selection. Hence, the specimen BM014605561 has been selected here as the
lectotype
of the name.
Phoebe lummaoensis
was differentiated with
P. lanceolata
but unfortunately the range of variation of the latter was not taken into account while describing the new species which is synonymized here. Likewise, the peninsular Indian population, representing a variant with shorter, few-branched panicles with fewer flowers was described as
P. palghatensis
. Here also the range of variation of the species was not taken into account.