Eumachia expanded, a pantropical genus distinct from Psychotria (Rubiaceae, Palicoureeae)
Author
Taylor, Charlotte M.
Author
Razafimandimbison, Sylvain G.
Author
Barrabé, Laure
Author
Jardim, Jomar G.
Author
Barbosa, Maria Regina V.
text
Candollea
2017
2017-07-20
72
2
289
318
journal article
20720
10.15553/c2017v722a6
0980a4bf-3c86-4008-a974-93416fab31a8
2235-3658
5721990
1.
Eumachia abrupta
(
Hiern) Delprete & J.H. Kirkbr. in
J. Bot. Res. Inst.
Texas
9: 76. 2015
.
Ξ
Psychotria abrupta
Hiern in Oliver, Fl.
Trop. Afr. 3: 205. 1877
. Ξ
Uragoga abrupta
(Hiern)
Kuntze, Revis. Gen. Pl. 2: 959. 1891
. Ξ
Chazaliella abrupta
(Hiern)
E.M.A. Petit & Verdc. in
Kew Bull. 30: 268. 1975
. Ξ
Margaritopsis abrupta
(Hiern)
L. Andersson in Syst. Geogr.
Pl. 72: 230. 2002
.
Lectotypus
(designated here):
MOZAMBIQUE
:
Shigogo
,
XII.1860
,
Kirk
s.n
. (
K
[
K000412356
, plant on upper left] image seen)
.
Syntypus
:
MOZAMBIQUE
:
Shiramba
,
XII.1860
,
Kirk
s.n
. (
K
[
K000412356
plant on lower right] image seen)
.
Notes.
– This species is found in
Democratic Republic of Congo
,
Kenya
,
Tanzania
,
Mozambique
,
Malawi
,
Zambia
,
Zimbabwe
, and
Angola
(
VERDCOURT, 1977
). This species was illustrated by
VERDCOURT (1976: 118
, fig. 8, 1989: 36, fig. 5), as
Chazaliella abrupta
var.
abrupta
. The name
Psychotria abrupta
apparently has not been lectotypified previously. This name was described based on
two syntypes
, both collected by Kirk in
Mozambique
and both mounted on one sheet at K [K000412356]. The plant on the upper left of that sheet has flowers and also shows well the characteristic indurated stipules, stem internodes with a medial longitudinal ridge, and whitened corky bark that is characteristic of
Eumachia
, and this plant is designated here as the
lectotype
. The other
syntype
has two inflorescences from which the corollas have fallen and stipules that have mostly already broken off.