Alstonia longifolia

Alstonia longifolia is a plant species in the genus Alstonia, family Apocynaceae. It is native to southern Mexico and Guatemala at an elevation of 1400–1800 m.^[3]

Alstonia longifolia
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Apocynaceae
Genus:	Alstonia
Species:	A. longifolia
Binomial name
Alstonia longifolia (A.DC.) Pichon
Synonyms[2]
Alstonia macrantha (Woodson) A.Gentry. Alstonia pittieri (Donn.Sm.) A.H.Gentry Alstonia stenophylla (Donn.Sm.) J.F.Morales nom. illeg. Carissa verticillata Sessé & Moc. Rauvolfia longifolia A.DC. Rauvolfia stenophylla Donn.Sm. Tonduzia longifolia (A.DC.) Markgr. Tonduzia longipedunculata Woodson Tonduzia macrantha Woodson Tonduzia parvifolia Pittier Tonduzia pittieri Donn.Sm. Tonduzia stenophylla (Donn.Sm.) Pittier

This is a tree up to 11 m (36 ft) tall. It is distinguished from related species by its corolla tube 7–10 mm (0.28–0.39 in) long, with obovate lobes 4 mm–6 mm × 2 mm–3 mm (0.157 in–0.236 in × 0.079 in–0.118 in).

References

1. Condit, R. (2021). "Alstonia longifolia". IUCN Red List of Threatened Species. 2021: e.T176098538A176098540. doi:10.2305/IUCN.UK.2021-1.RLTS.T176098538A176098540.en.
2. "World Checklist of Selected Plant Families".
3. Morales, J. F. (1995). "Evaluacion del genero Alstonia (Apocynaceae) en Centro America". Phytologia. 78 (3): 192–194.