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
2.
Phoebe attenuata
(Nees)
Nees von Esenbeck (1836: 104)
.
Type:—
BANGLADESH
.
Sylhet
, s.d., fl.,
de Silva
in
Wallich
, Numer. List No.
2600
(
lectotype
designated here:
K001116541
, digital image!;
isolectotypes
:
BM013718292
,
G-DC
[
G00693568
], digital images!, LE n.v.)
.
Basionym:
—
Ocotea attenuata
Nees von Esenbeck (1831: 71)
.
Trees
,
8–35 m
high; GBH up to
60 cm
; bud scale scars in dense rings around twigs; young shoots fulvous tomentose; branchlets densely yellow, rusty or often greyish tomentose when young, glabrescent.
Leaves
more or less clustered at the ends of the twigs, obovate, oblong-obovate, obovate-elliptic to oblanceolate or sometimes oblong-elliptic, 10–35 ×
3–10 cm
, cuneate to cuneate-attenuate or acute at base, apiculate or sometimes shortly acuminate (acumen
5–20 mm
long, slender) at apex, chartaceous or often membranous, puberulous on midrib (and often lateral veins) to glabrous above, yellow, greyish or rusty tomentellous to pilose on veins beneath, brown or blackish or dark reddish brown above when dry, green to brown or chocolate brown beneath, not glaucous; lateral veins slender, (8–)10–20 pairs, prominent above, raised beneath; tertiary veins obscure to prominent above, prominent beneath, veinlets obscure to faint above, inconspicuous to somewhat prominent beneath, petioles 5–30 ×
1–3 mm
, tomentellous to scattered puberulous.
Panicles
few-branched,
8–30 cm
long; axis and branches fulvous or sometimes greyish tomentellous to scattered puberulous (in age), glabrescent in fruiting.
Flowers:
pedicels
1–3 mm
long, tomentellous; tepals broadly ovate to ovate-oblong, 3–3.5 ×
1.6–2 mm
, tomentellous outside, sericeous inside; stamens
2–3.5 mm
long; staminodes ca.
2 mm
long; ovary subglobose, ca.
1.3 mm
in diam.; style ca.
1.5 mm
long, stigma trifid.
Fruits
ellipsoid to ovoidellipsoid, 1.3–2 ×
0.8–1.5 cm
; fruiting pedicels
1–3 mm
long; fruiting tepals
3–5 mm
long.
Local names:
—
Angare
(Bengali),
Bonsum
(Assamese),
Sanang
(Burmese),
Thai-jing-phang
(Cachar),
Thingbatwang-arong
(Mikir).
Phenology:
—Flowering in March to July and fruiting in April to February.
Habitat:
—Fairly common in tropical to subtropical or evergreen forests between
450–1700 m
elevations.
Distribution:
—
Bangladesh
,
Bhutan
,
India
,
Laos
,
Myanmar
,
Nepal
,
Thailand
, and
Vietnam
.
Uses:
—Reported to be a timber tree.
Specimens examined:—
BANGLADESH
.
Type
specimen as cited above
.
BHUTAN
.
Gaylegphug dist.
, above
Sher
camp,
19 km
along
Tongsa
road,
25 May 1982
, fl.,
A.J.C. Grierson
&
D.G. Long
3999
(
E00168492
)
;
21.5 km
from
Shamgong
on road to
Gaylegphug
,
10 May 1984
, fl.,
B. Bartholomew
1639
(
E00168494
)
.
Sarbhang
dist., near
Lao pani
,
7 March 1982
, fl.,
A.J.C. Grierson
&
D.G. Long
3543
(
E00168495
)
.
Baksa
,
18 April 1915
, fl.,
R.E. Cooper
3708
(
E00168493
)
.
Without locality, s.d., fl.,
W. Griffith
, Kew Distrib. No.
4254
(CAL herb. acc. no. 385182,
K000778863
,
LE
,
P02009388
)
.
INDIA
.
Arunachal Pradesh
:
Tiraf dist.
,
Niusa
to
Wanu
,
1 September 1958
, fr.,
G. Panigrahi
15013
(ASSAM, CAL)
.
Assam
:
Golaghat
, 1891, fl.,
G. King
s.n.
(CAL herb. acc. no. 385189, CGE)
.
Meghalaya
:
Garo
hills,
Tura mountain
,
17 March 1950
, fl.,
Thakur Rup Chand
2860
(L.1813840)
.
Sikkim
:
Godok
,
11 April 1908
, fl.,
Ribu
730
(
CAL
)
;
Without locality, s.d., fl.,
G.A. Gammie
s.n.
(CAL herb. acc. no. 384482)
;
Without locality,
9 June 1876
, fr.,
G. King
s.n.
(CAL herb. acc. no. 385173)
;
ibid.,
September 1876
, fr.,
G. King
s.n.
(CAL herb. acc. nos. 385176, 385177)
.
Mizoram
: Lushai hills, Aizawl,
1 April 1954
, fl.,
Godfrey
594
(
CAL
)
;
Lushai hills, s.d., fl.,
Mrs.
Parry
32
(
CAL
)
.
West Bengal
:
Darjeeling dist.
, Darjeeling, s.d. [
22 May 1923
], fr.,
J.M. Cowan
s.n.
(BR0000029338689, E01104193, E01104194)
;
Pankhabari,
25 May 1884
, fr.,
C.B. Clarke
35488A
(
CAL
)
;
Mungpo,
14 July 1909
, fr.,
H.E. Cooper
770
(
CAL
)
.
Alipurduar dist.
,
Jaldapara National park
,
7 June 2013
, fr.,
K. Karthigeyan
61120
(CAL—2 sheets)
.
LAOS
.
Pu Tat
,
21 April 1932
, fl.,
A.F.G. Kerr
21184
(P02009178)
.
MYANMAR
.
Southern
Shan
States
,
Kengtung
,
August 1909
, fl.,
R.W. MacGregor
212
(E00901898)
;
Loimwe
, 1909, fl.,
R.W. MacGregor
212
(
CAL
)
.
Myitkyina dist.
, Nga-Maw kha,
19 September 1912
, fr.,
Mg Myaw 51
(E00901899)
.
Kachin
hills, 1897, fr.,
S. Mokim
s.n.
(CAL herb. acc. nos. 385267 & 395269)
.
Tavoy, Heinzechaung headwaters,
21 February 1921
, fr.,
A.T. Gage
10
(CAL—3 sheets)
.
Kachin
hills, Nawli,
24 March 1897
, fl.,
E. Pottinger
s.n.
(CAL herb. acc. no. 385194)
.
NEPAL
.
Without
locality,
14 March 1969
,
J.D.A. Stainton
s.n.
(BM000888341 n.v.);
Without
locality,
3 May 1967
,
J.D.A. Stainton
s.n.
(BM000888342 n.v.)
.
THAILAND
.
Kao Keo Kang
,
Dan Sai
,
10 April 1922
, fr.,
A.F.G. Kerr
5795
(P02009389);
Pant Tawn
,
Chiengmai
,
2 May 1931
, fr.,
Put
3867
(P02009390)
.
VIETNAM
.
Ninh Binh Province
,
Cuc Phuong National Park
,
19 July 2000
, fl.,
P.K. Loc
,
D.T. Kien
,
M.V. Sinh
P10390
(P02009068)
.
Notes:
—
Similar to
Phoebe bootanica
in general appearance but distinct by the smaller flowers with non-articulated pedicels.