Pseudoprospero

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Asparagaceae
Subfamilia: Scilloideae
Tribus: Hyacintheae
Subtribus: Pseudoprosperineae
Genus: Pseudoprospero
Species: P. firmifolium
Name

Pseudoprospero Speta, Phyton (Horn) 38: 116 (1998)
Distribution
Native distribution areas:

Africa
Southern Africa
Cape Provinces, KwaZulu-Natal.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Speta, F. 1998. Systematische Analyse der Gattung Scilla L. s.l. (Hyacinthaceae). Phyton (Horn) 38(1): 1–141. PDF Reference page.
Manning, J.C., Goldblatt, P. & Fay, M.F. 2004. A revised generic synopsis of Hyacintheaceae in sub-Saharan Africa, based on molecular evidence, including new combinations and the new tribe Pseudoprospereae. Edinburgh Journal of Botany 60(3): 533–568. DOI: 10.1017/S0960428603000404 Reference page.
Govaerts, R. et al. 2018. Pseudoprospero in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 Jan. 6. Reference page.
International Plant Names Index. 2018. Pseudoprospero. Published online. Accessed: Jan. 6 2018.

Pseudoprospero is a genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae (also treated as the family Hyacinthaceae).[2] The genus has a single species Pseudoprospero firmifolium,[1] which is endemic to South Africa (the Cape Province, KwaZulu-Natal).[3]

Description

Pseudoprospero firmifolium grows from an underground bulb whose tunic has dry, paper-like outer layers. The channelled linear leaves are evergreen. The flowers are borne in a loose many-flowered raceme, which usually has a side branch. Individual flowers have white to lilac tepals which are joined at the base and persist into the fruiting stage. The stamens are more-or-less erect, with filaments joined at the base to the tepals and to each other. The seeds are black.[4]
Systematics

From the 1970s onwards, Franz Speta and co-workers split up the broadly defined genus Scilla, placing many of its species into separate genera.[5] One of these genera was Pseudoprospero, created by Speta in 1998 for the former Scilla firmifolia.[1] Subsequent studies have confirmed that Pseudoprospero firmifolium is distinct not only from Scilla but from all other genera in the tribe Hyacintheae (or the subfamily Hyacinthoideae for those who accept the family Hyacinthaceae),[6] being placed in its own subtribe.[note 1]
Subspecies

Two subspecies are recognised:[1]

Pseudoprospero firmifolium subsp. firmifolium - Cape Province
Pseudoprospero firmifolium subsp. natalensis J.C.Manning - KwaZulu-Natal

Chemistry

Five homoisoflavanones, 3,5-dihydroxy-7,8-dimethoxy-3-(3',4'-dimethoxybenzyl)-4-chromanone, 3,5-dihydroxy-7-methoxy-3-(3',4'-dimethoxybenzyl)-4-chromanone, 3,5-dihydroxy-7,8-dimethoxy-3-(3'-hydroxy-4'-methoxybenzyl)-4-chromanone, 3,5,6-trihydroxy-7-methoxy-3-(3'-hydroxy-4'-methoxybenzyl)-4-chromanone and 3,5,7-trihydroxy-3-(3'-hydroxy-4'methoxybenzyl)-4-chromanone, can be isolated from the dichloromethane extract of the bulbs of P. firmifolium.[7]
Notes

Manning, Goldblatt & Fay (2004) place Pseudoprospero as the sole genus in the family Hyacinthaceae, subfamily Hyacinthoideae, tribe Pseudoprospereae, equivalent to the classification family Asparagaceae, subfamily Scilloideae, tribe Hyacintheae, subtribe "Pseudoprosperinae", although this last name appears not to have been published.

References

"Search for Pseudoprospero", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2013-04-12
Stevens, P.F. (2001 onwards), "Asparagales: Scilloideae", Angiosperm Phylogeny Website, retrieved 2013-04-12
"Pseudoprospero firmifolium", World Checklist of Selected Plant Families, Royal Botanic Gardens, Kew, retrieved 2013-04-12
"Pseudoprospero Speta", eMonocot, retrieved 2013-04-12
Trávníček, Bohumil; Duchoslav, Martin; Šarhanová, Petra & Šafářová, Lenka (2009), "Squills (Scilla s.lat., Hyacinthaceae) in the flora of the Czech Republic, with taxonomical notes on Central-European squill populations" (PDF), Acta Musei Moraviae, Scientiae Biologicae (Brno), 94: 157–205, retrieved 2013-04-09
Manning, J.C.; Goldblatt, P.; Fay, M.F. (2004), "A revised generic synopsis of Hyacintheaceae in sub-Saharan Africa, based on molecular evidence, including new combinations and the new tribe Pseudoprospereae", Edinburgh Journal of Botany, 60 (3): 533–568, doi:10.1017/S0960428603000404
Koorbanally, C; Sewjee Sarisha, Mulholland D A; Crouch, N R; Dold, A (2007). "Homoisoflavanones from Pseudoprospero firmifolium of the monotypic tribe Pseudoprospereae (Hyacinthaceae: Hyacinthoideae)". Phytochemistry. 68 (22–24): 2753–2756. doi:10.1016/j.phytochem.2007.08.005. PMID 17884116.