7. Hapaline colaniae
in Notul. Syst. 134 (1941) & in Fl.
Głn. l'Indo-Chine 6: 1132 (1942). Type: Vietnam, Ha bac, Colani
2919 (holotype P!; isotypes K (photo!), P!, NSW, SGN!, US).
Rather robust, deciduous perennial herb up to 32 cm tall. Stem:
tuber cylindric, 1 x 3 cm, rhizomatous in appearance; stolon unknown.
Roots c. 0.25 mm in diam. Leaf: prophyll linear-triangular to oblong-triangular,
up to 5 cm x 7 mm, acute; cataphyll linear-triangular, up to 7.5
cm x 9 mm, acute; petiole 25 - 27.5 cm x 2 - 3 mm; leaf blade hastate,
junction of anterior lobe with posterior lobes strongly constricted,
13.3 - 23.5 x 5.5 - 9.4 cm, thin-textured, dark green, heavily marked
with diffuse pale green and silver-grey patches, margins smooth,
apex acuminate to subacuminate, posterior lobes acute to subacuminate,
strongly divergent. Inflorescence: 1 - several together, emerging
slightly after the leaves; peduncle 8 - 16.5 cm x 1 - 1.5 mm spathe
5 - 6 cm long; spathe limb oblong-elliptic, 3 - 3.5 cm x 8 - 11
mm, apex subacute to rather obtuse, minutely apiculate, base rather
short-decurrent into lower spathe; lower spathe margins clasping
to slightly erect, 1.5 - 2 x 1.5 - 2 mm; spadix 3 - 3.5 cm x 2 -
3 mm, free portion cylindric, 2.5 - 3 cm, tapering apically in an
appendix composed of free synandrodes. Flowers: synandria oblong-elliptic
in plan view, 6 - 8 x 1 - 2 mm; ovaries ellipsoid to bottle-shaped,
3 x 1 mm, c. 7 in a single row; stigma capitate, c. 0.33 mm diam;
style ± absent. Infructescence: enclosed by the persistent spathe
tube, few-berried; berries ellipsoid, 4 - 5.5 x 3 x 4 mm, stigmatic
remains persistent, prominent. (Fig. 7.).
DISTRIBUTION. Thailand, Vietnam. THAILAND. Chaiyaphum: Phu-Landca
Forest Reserve, 1981, Vamanonda 1 (K spirit 46483! & 57280!). VIETNAM.
Ha bac: Lang-met, May 1925, Colani 2919 (holotype P!; isotypes K
(photo!), P!, SGN!).
HABITAT. Unknown. This is the most distinctive species of
Hapaline, with leaves with a prominent constriction at the
junction of the anterior and posterior lobes and large inflorescences.
A plant grown at Kew under Vamanonda 1 originated from Thailand
and is the only record of the species outside Vietnam. Both the
type collection and the plant grown at Kew have leaves with irregular
pale green and silver-grey markings.