Microlaena stipoides (Labill.) R. Br. , Prodr.: 210. 1810.
Three new grass records for Madagascar
Vorontsova, Maria S.
Nanjarisoa, Olinirina Prisca
Besnard, Guillaume
Candollea
2014
2014-07-01
69
1
85
87
38V4F
Labill.
Labill.
[103,384,1616,1640]
Liliopsida
Poaceae
Ehrharta
Plantae
Poales
1
86
Tracheophyta
species
stipoides
≡ Microlaena stipoides(Labill.) R. Br., Prodr.: 210. 1810.
Typus: AUSTRALIA. Tasmania: Capite van-Dieman, Labillardières.n.( holo-: FI).
Observations.– An Australian and South East Asian species, Ehrharta stipoidesLabill.(also referred to as Microlaena stipoides(Labill.) R. Br.or meadow rice grass, now included in the genus EhrhartaThunb.following Verboom & al. 2003) is recorded as naturalised in Kwa-Zulu Natal, Sri Lanka, and Easter Island ( WCSP, 2014), and in both Hawaii and Réunion, where it has become invasive ( PACIFIC ISLAND ECOSYSTEMS AT RISK, 2014). It invades disturbed sites rapidly as the awned florets are dispersed on clothing or animal fur and is reported to increase with fire ( HAWAIIAN ALIEN PLANT STUDIES, 2014). With its distinctive long awns this species is rarely misidentified and is more likely to attract the attention of collectors than other Poaceae. The lack of other collections and other sightings suggests this could be a recent arrival brought in by visitors to the Andringitra National Park. No other species of Ehrhartahave been recorded in Madagascar in spite of the common occurrence of E. erectaLam.in South Africa and Réunion.
Specimen examined.– MADAGASCAR. Prov. Fianarantsoa: Parc National Andringitra, Riampotsy, at camp 3, single plant sheltered under the picnic table, 22°10’49’’S 46°54’12’’E, 2064 m, 28.X.2013, Nanjarisoa, Vorontsova, Rakotonasolo& Joseph90( K!, P!, TAN!).
3409041305
FI
Labillardiere
Australia
Capite van-Dieman
1
86
1
Tasmania
holotype
3409041301
2013-10-28
K, P, TAN
Nanjarisoa & Vorontsova & Rakotonasolo & Joseph
Madagascar
2064
Parc National Andringitra
Fianarantsoa
1
86
1