A revision of the Malagasy species of Homalium sect. Blackwellia (Salicaceae)
Author
Applequist, Wendy L.
text
Candollea
2018
2018-11-05
73
2
221
244
journal article
20537
10.15553/c2018v732a7
4c48979e-961e-4f52-aea5-35622edab76f
2235-3658
5724607
2b.
Homalium axillare
subsp.
delphinense
(H. Perrier) Appleq.
,
comb. & stat. nova.
≡
Homalium microphyllum
var.
delphinense
H. Perrier
in
Mém. Mus. Natl. Hist. Nat. 13: 289. 1940
.
Lectotypus
(designated here):
MADAGASCAR
. Prov.
Toliara
:
Fort Dauphin
, s.d., fl.,
Cloisel
199
(
P
[
P00624057
]!;
isolectotype
:
BM
,
L
[
L0010881
] image seen)
.
Syntypi
:
MADAGASCAR
. Prov.
Toliara
:
Fort Dauphin
,
Cloisel
180
(
BM
not seen,
P
not seen)
;
Vinanibe
,
23.X.1932
,
Decary
10864
(
P
!,
BM
,
PRE
[
PRE0602194-0
] image seen,
S
[
S10-10152
] image seen,
TAN
[
TAN000589
] image seen);
Cap Ivatra
, s.d., fl.,
Decary
10912
(
MO
[
MO- 5587081
]!,
P
[
P00624056
]!,
G
[
G00018420
] image seen,
L
[
L0010882
] image seen);
vallée moyenne du Mandrare près d’Anadabolava
,
mont Vohibaria
,
800–810 m
(sommet),
XII.1933
, buds,
Humbert
12626
(
P
[
P00624051
]!)
;
FortDauphin
,
July
,
Scott-Elliot
3041
(
K
[
K000231499
] image seen,
P
[
P00624055
]!)
.
=
Homalium humblotii
Baill
.
in
Bull. Mens. Soc. Linn. Paris. 1: 574. 1886
.
Holotypus:
MADAGASCAR
:
“Madag. bor.”, s.d., fr.,
Humblot
582
(
P
[
P00624054
]!;
isotype
:
K
[
K000231500
] image seen,
LD
[
LD1215854
] image seen,
TAN
[
TAN000243
] image seen,
US
[
US00114722
] image seen).
Tree
to
10 m
,
15 cm
dbh, or shrub.
Leaves
elliptical to narrowly (broadly) elliptical (seldom to ovate or rarely lanceolate), (2–)2.5–6.5 × (0.9–)
1.1–3.6 cm
; petiole (1.5–)2–4(–5) mm; margins crenate-serrulate to subentire, with glands round or slightly elongated; adaxial surface drying darker, usually greenish or grayish, abaxial surface pale to medium brown (greenish).
Inflorescences
1.5–8 cm
.
Filaments
0.8–2.4 mm
.
Vernacular names and uses.
– “Fotsivony”
(
Humbert
12626);
“Hazofotsy”
(Randriatafika & Ramisy 408, Randriatafika & Rabenantoandro 715, Ratovoson 1661);
“Hazombahy”
(Réserves Naturelles 1812, 2303);
“Hazombarorona”
(Cours 2801);
“Hazombato”
(Cours 1898, Gautier et al. 3120);
“Hazombatofotsy”
(Service Forestier 13711);
“Hazombatry”
(Réserves Naturelles 2401);
“Hazondrena”
(Réserves Naturelles 2272);
“Laza laza madiniky”
(Gautier & Derleth 2563);
“Mampay”
(Hong-Wa 21);
“Marankoditra”
(Ramison & Ramisa 110, Randriataf ika & Ramisy 263);
“Nefinzaza”
(Cloisel 199);
“Taimboalavo”
(Réserves Naturelles 8936, 10716, Service Forestier 26398);
“Tsilastra”
(Service Forestier 9979);
“Tsivelonatavy”
(Service Forestier 6440);
“Zora”
(Service Forestier 6085, 6396, 7415);
“Zore”
(Réserves Naturelles 1350).
Wood of
H. axillare
subsp.
delphinense
is used for construction
(Hong-Wa 21, Ratovoson 1661, Réserves Naturelles 1812, Service Forestier 26398)
and manufacture of wooden objects
(Réserves Naturelles 1350).
Distribution, ecology and conservation status. –
Homalium axillare
subsp.
delphinense
as herein defined is widespread and its habitat is variable, ranging from littoral forest on sand to mid- or somewhat high-elevation humid forests on gneiss. As noted above, though there is regional variation in morphology, that variation is not entirely consistent with reported habitat or altitude. It is possible that two distinct infraspecific taxa exist within this subspecies, but means of consistently separating them have not been identified. Because of the numerous localities, several of them protected, the subspecies’ appropriate conservation status is “Least Concern” [LC].
Notes.
– As noted above, this subspecies remains variable and possibly heterogeneous. Sleumer annotated
Cloisel 199
(P) as the
lectotype
of
H. microphyllum
var.
delphinense
but failed to indicate this choice in print (
SLEUMER, 1973
). Duplicates of
three syntypes
at BM that are not available through JSTOR are reported based on statements by
SLEUMER (1973)
.
Selected material examined.
–
MADAGASCAR
. Prov.
Antsiranana
:
RNI de Tsaratanana
,
14°02'51"S
48°46'54"E
,
1300 m
,
27.XI.2000
, fl.,
Birkinshaw
et al. 767
(
BR
,
K
,
MO
)
;
Cne Beramanja
,
13°38'40"S
48°40'18"E
,
632 m
,
22.XI.2007
, fl.,
Callmander
et al. 711
(
MO
,
P
)
;
Bekolosy
(
14°02'S
48°18'E
),
vallon en amont de la chute de la riv. Bekolosy
,
1100 m
,
15.XI.1994
, fr.,
Gautier
&
Derleth
2563
(
MO
,
P
)
;
vallée inférieure de l’Androranga
,
affluent de la Bemarivo
(NE)
aux env. d’Antongondriha,
mont Anjenabe
,
1000 m
,
3–7.XI.1950
, fl.,
Humbert
&
Capuron
24146
(
P
)
;
Montagnes au N de Mangindrano jusqu’aux sommets d’Ambohimirahavavy
(
partage des eaux Mahavavy-Androranga
),
1600 m
,
19.I-12.II.1951
, fl.,
Humbert
&
Capuron
24915
(
P
)
;
Manongarivo Massif above village of Ambodisakoana
,
14°05'S
48°20'E
,
16.X.1994
, fl.,
McPherson
&
van der Werff
16356
(
MO
)
;
Daraina
,
forêt de Binara
,
13°16'S
49°36'E
,
960 m
,
19.XI.2005
, fl.,
Nusbaumer
&
Ranirison
1636
(
MO
,
P
)
;
Réserve Spéciale de Manongarivo
,
14°04'34"S
48°22'29"E
,
1100–1350 m
,
15.VIII.1994
, fl.,
Randriambololona
et al. 121
(
K
,
MO
,
P
)
;
Sainte Luce
,
24°44'27"S
47°10'55"E
,
50 m
,
19.XI.2011
, fl.,
Ratovoson
1661
(
MO
)
;
forêt de Kalabenono
,
13°38'59"S
48°40'41"E
,
785 m
,
24.XI.2006
, fl.,
Razafitsalama
et al. 1117
(
MO
)
;
Soahita
,
Ambohimitsinjo
,
Sambava
,
22.X.1957
, fr.,
Réserves Naturelles
9253
(
P
)
;
Flanc S de l’Anjenabe
,
vallée de l’Andromanga
, c.
900 m
,
5.XI.1950
, fl.,
Service Forestier
753
(
MO
,
P
)
;
crête S du Betsomanga
,
bassin de l’Androranga
,
dct. de Sambava
,
900 m
,
19.XI.1950
, fl.,
Service Forestier
835
(
P
)
;
massif de l’Ambohimarahavavy
, [Bealanana?]
S du plateau de Marofameno
,
1500 m
,
7.II.1951
, fl.,
Service Forestier
994
(
P
)
;
Manongarivo massif
,
14°05'S
48°20'E
,
500–1000 m
,
20.X.1994
, fl.,
van der Werff
&
McPherson
13533
(
MO
)
;
vallée de l’Ambahatra (cours moyen)
,
Maevatanana (haut de pente)
,
13°54'51"S
48°29'08"E
,
380 m
,
19.XI.2000
, fl.,
Wohlhauser
et al. 319
(
MO
,
P
)
.
Prov.
Fianarantsoa
:
Ambodiriana rive droite du fleuve
,
700 m
,
14.XII.1944
, fl.,
Cours
1898
(
P
[2 sheets])
;
Ambodimanga à Antanambao
,
1200 m
,
11.X.1945
, fr.,
Cours
2801
(
P
)
;
Riambavy Waterfall
,
22°08'45"S
46°53'31"E
,
1760 m
,
8.XI.2003
, fr.,
Phillipson
&
Rakotonandrasana
5689
(
BR
,
CAS
,
G
,
K
,
L
,
MO
,
P
)
;
Tandrokomby
,
massif de l’Andringitra
, R.N. V,
4.X.1948
, fl.,
Réserves Naturelles
1812
(
P
[2 sheets])
;
Ambodirindahy
,
Sendrisoa
,
7.X.1950
, fl.,
Réserves Naturelles
2272
(
P
[2 sheets])
;
RN V
,
Ambalavao
,
Zazafo
,
23.X.1949
, fl. & fr.,
Réserves Naturelles
2401
(
P
[2 sheets])
;
Antambohobe
,
12.III.1960
, fl.,
Réserves Naturelles
10716
(
P
)
;
Fenoarivo
,
Ilakatra
,
Vohipeno
,
20.XI.1952
, fl.,
Service Forestier
6440
(
P
)
;
Ifanadiana SW
,
19.XII.1953
, fr.,
Service Forestier
9979
(
P
)
;
Ampasinambo
,
Nosy-Varika
,
25.XI.1954
, fl.,
Service Forestier
13711
(
P
)
;
cTOn Amtambohobe
,
village le plus proche Ankazomby
,
Lohony
,
15.VIII.1967
, fl.,
Service Forestier
26398
(
P
)
;
Massif de l’Isalo
,
à l’W de Ranohira
,
20.XII.1968
, fr.,
Service Forestier
28506
(
P
)
.
Prov.
Mahajanga
:
Fkt. Andranomena
,
Befandriana Nord
,
15°08'14"S
49°21'27"E
,
1084 m
,
12.II.2008
, fl.,
Ravelonarivo
et al. 2793
(
G
,
MO
)
.
Prov.
Toliara
:
Réserve Spécial de Kalambatritra
,
forêt d’Analamaro
,
23°28'00"S
46°23'20"E
,
1420 m
,
6.XI.2004
, fl.,
Andrianjafy
et al. 527
(
MO
,
P
)
;
District de Fort-Dauphin
,
Vinanibe
,
23.X.1932
, fl.,
Decary
10863
(
P
)
;
Fort Dauphin
,
forêt de Mandena
,
16.III.1985
, fr.,
Dorr
et al. 3978
(
MO
,
P
)
;
Petriky Forest
,
0–10 m
,
25°04'S
46°51'E
,
13.III.1989
, fl.,
Gereau
&
Dumetz
3260
(
MO
,
P
)
;
Ampasimena
,
Mt Tsimokotra-Vohimavo
,
24°20'11"S
47°08'55"E
,
542–547 m
,
30.XI.2001
, fl.,
Hong-Wa
21
(
MO
)
;
Petriky
,
25°05'S
46°52'E
,
2.XI.1989
, fl.,
McPherson
14361
(
MO
,
P
)
;
Fkt. Sainte Luce
,
bloc S9
,
24°46'28"S
47°09'50"E
,
3 m
,
4.XI.2003
, fl.,
Rabenantoandro
et al. 1558
(
MO
,
P
)
;
Fort-Dauphin
,
forêt au N de Manafiafy
,
12.XI.1990
, fl.,
Rabevohitra
2442
(
MO
,
P
)
;
Ambohisapa
,
Thalweg à l’E d’Ambatotsorongorongo
,
25°05'11"S
46°46'13"E
,
31 m
,
23.II.2009
, fr.,
Rakotovao
et al. 4402
(
MO
)
;
Mandromodromotra
,
24°55'22"S
47°01'28"E
,
9 m
,
6.XII.2006
, fl.,
Ramison
&
Ramisa
110
(
MO
)
;
Mahatalaky
,
forêt de Belavenoka
,
24°50'S
47°04'E
,
17.XI.2007
, fr.,
Ramison
410
(
MO
,
P
)
;
Station forestière de Mandena
(M.16),
30.VIII.2001
, fl.,
Randriatafika
&
Ramisy
263
(
MO
,
P
)
;
Fkt. Petriky
,
25°03'19"S
46°51'55"E
,
18.II.2004
, fl.,
Randriatafika
&
Ramisy
408
(
MO
)
;
Antsotso
,
forêt Ivohibe
,
24°33'52"S
47°11'43"E
,
386 m
,
XI.2005
, fl.,
Razakamalala
et al. 2440
(
MO
,
P
)
;
Réserve forestière de Mandena
,
16.XI.1948
, fr.,
Réserves Naturelles
1350
(
P
[2 sheets])
;
Vinanibe
,
à l’W de Fort-Dauphin
,
7.XII.1968
, fl.,
Service Forestier
28623
(
P
)
.