Contains 2 accepted taxa overall.

Characteristics

Alstonia R.Br.
ALSTONIA

Classification

GENTIANALES
Alstonia

Citation

ALSTONIA R. Brown, Asclepiadeae 64. 1810, nom. cons. vs. Alstonia Scopoli 1777, et vs. Alstonia Mutis ex Linnaeus f. 1782.
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TYPE: Alstonia scholaris (Linnaeus) R. Brown (Echites scholaris Linnaeus)

Species

Scientific Name Common Name Herbarium Specimens Status Photos
Alstonia macrophylla DEVILTREE Not Native Y
Alstonia scholaris DITA; WHITE CHEESEWOOD Not Native

Identification Key

1.  Nodes with 3-4 leaves, rarely more; lateral veins curving or branching well before the leaf blade margin, the veins generally 5-15 mm apart from one another
1.  Nodes with 3-10 leaves, usually some with 5 or more; lateral veins straight to very slightly curved to the leaf blade margin, uniting with the marginal vein ca. within 1 mm of the margin, the veins generally 1-5 mm apart from one another

Genus Synonyms

Synonym Full Citation Basionym Type
Amblyocalyx Amblyocalyx Bentham, Hooker's Icon. Pl. 1179. 1876. TYPE: Amblyocalyx beccarii Bentham 1876.
Pala Pala Jussieu, Ann. Mus. Natl. Hist. Nat. 15: 346. 1810, nom. rej. vs. Alstonia R. Brown 1810. TYPE: Echites pala F. Hamilton
Tonduzia Tonduzia Pittier, Contr. U.S. Natl. Herb. 12: 103. 1908. TYPE: Tonduzia parvifolia Pittier