The French Polynesian Atractocarpus Schltr. & K. Krause (Rubiaceae): circumscription of A. tahitensis and description of A. teamotuaitaui sp. nov., both microendemic and critically endangered species in the Society Islands Author Mouly, Arnaud Author Butaud, Jean-François text Adansonia 2023 3 2023-05-09 45 10 151 159 journal article 58366 10.5252/adansonia2023v45a10 38d1249f-27b1-493a-8277-5c6d4a4607af 1639-4798 7938601

TABLE 1. — Distinctive features for the Atractocarpus Schltr. & K.Krause species resembling the new Tahitian population.

	Atractocarpus	Atractocarpus	Atractocarpus	Atractocarpus	Atractocarpus
	teamotuaitaui sp. nov.	tahitensis	carolinensis	crosbyi	sezitat
		(Nadeaud) Puttock	(Valeton) Puttock	(Burkill) Puttock	(Guillaumin) Mouly
Breeding	Plants with hermaphroditic Plants with		Dioecious species	?Dioecious species	Plants with
system	flowers	hermaphroditic			hermaphroditic
		flowers			flowers
Habit	Weakly branched treelet	Slender treelet	Slender treelet	Slender treelet	Weakly branched
	c. 4 m	6-10 m	4-10 m	c. 6 m	treelet c. 4 m
Leaf base	Limb base rounded	Limb base attenuated	Limb base attenuated	Limb base cuneate	Limb base attenuated
	to slightly cordate
Leaf petiole	Short c. 2-3 mm	10-15 mm	5-27 mm	7-15 mm	5-10 mm
Ratio corolla	2-2.5	1.3-1.5	1-1.5	1-1.2	1.1-1.3
lobes/corolla
tube
Geographic	Society Islands:	Society Islands:	New Guinea, New	Tonga	New Caledonia &
locality	Tahiti Iti	Tahiti Nui, Raiatea	Ireland, New Britain,		Vanuatu
			Solomon Islands &
			Truk archipelago
			(Caroline Islands)