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Musa gracilis
Musa gracilis R. E. Holttum ex E. E. Cheesman, Kew Bulletin 5 (2): 154 - 155 (1950).
| Accepted name |
Musa gracilis R. E. Holltum ex E. E. Cheesman, Kew
Bulletin 5 (2): 154-155 (1950). |
| Synonyms |
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| Authorities |
Cheesman
1950 s. |
| Section |
Callimusa |
| Distribution |
Peninsular
Malaysia but now restricted to 2 small, separated populations in the districts of
Endau-Rompin in south-east Pahang and Kemaman in south Trengganu up to and across the
border with Kelantan. |
| Description |
Cheesman gives only Holttum's Latin diagnosis but says that
it is distinguished "from M. violascens by its much
smaller size [60 - 200 cm. high and 8 cm. in diameter at the base] deciduous bracts and longer, proportionately
more slender fruits [10 cm.
long, 2 - 2.5 cm. wide], which
are never more than 4 to a hand, in one row. Corner describes the fruit of the type
specimen as "light greenish white", Ridley those from the Tempayan river [in Malaysia] as glaucous, and those
from G[unung] Pulai as
having "longitudinal violet bands", Henderson those from Labis as "pale
glaucous green". The bracts are apparently sometimes almost white, but always
with some suffusion of violet-purple. Simmonds adds the following additions to the
description of the species : "female flowers, the styles green with white stigmas, staminodes green,
ovules biseriate and about 180 per ovary ; fruit, the skin darkening somewhat from very
pale green towards maturity, not yellow at ripeness, the flesh dead white ; seeds as M.
violascens, variably neatly cylindrical-truncate or ovoid-cylindrical and variable
also as to size of the osteole to the perisperm chamber opposite the hilum ; male bud
short lived dying off before fruit maturity, about 3 times as long as broad, strongly
imbricate for nearly half its length and broadest about the middle ; bracts fully
deciduous borne on rachis insertions which are much narrower and more widely spaced than
in M. violascens ; male flowers, the anthers fawny, bearing chalky white pollen.
The best key characters to distinguish this
species from M. violascens are the small size of the plant, the few large
uniseriate fruits and the slender deeply imbricate male bud broadest about the middle with
narrower bract insertions. The deciduousness of the bracts mentioned by Holttum is
hardly diagnostic, because M. violascens occasionally has this character". |
| References |
Cheesman 1950 s : 154, Hotta
1989, Ng 1984, Polunin 1988
(illus.), Saw & Sulaiman 1991, Simmonds 1956 : 488, Simmonds
1960 : 204, WCMC. |
| Comments |
M.
gracilis is obviously very close to M. violascens
but is maintained currently as a distinct species.
There is a confusing comment by Polunin that "M. gracilis is similar to M.
violascens but has a spindle-shaped flowerhead with two flowers per bract".
The difference is rather that M. gracilis has female flowers in one row
while M. violascens has female flowers in two rows.
The status of the plant in the wild is vulnerable according the the World Conservation
Monitoring Centre. However, it is highly probable that the plant known commercially
as Musa ornata 'Leyte White' is in fact Musa gracilis.
Images. |
With acknowledgements to Markku Häkkinen
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