Ixora thwaitesii Hook.f.

Harishma, K. H. & Nampy, Santhosh, 2025, Lectotypifications in Ixora L. (Rubiaceae), Adansonia (3) 47 (12), pp. 251-257 : 252

Ixora thwaitesii Hook.f.

( Fig. 2 )

Flora of British India 3: 138 ( Hooker 1882).

TYPE MATERIAL. — Sri Lanka • (‘Zeylon’); up to 3000 ft; s.d.; Thwaites CP 748; lectotype (designated here): CAL [ CAL0000016269 !] ); isolectotype: CAL [ CAL0000016270 !].

LECTOTYPIFICATION REMARKS

Hooker (1882) described I. thwaitesii and cited ‘ I. acuminata Thw. Enum. 155, excl. var β, not of Roxb. Thwaites in Enumeratio Plantarum Zeylaniae (p. 155. 1859 [ Thwaites 1859: 155])’ add the specimen CP 748 under it. Husain & Paul (1989) indicated the specimen (Thwaites CP 748) at CAL as the type. There are two sheets at CAL with the same collection number ( CAL 0000016269!, CAL 0000016270!). There are five more sheets of CP 748 at various herbaria (one each at BR ( BR 0000005316953), K ( K 000031363), LE ( LE 00017493) and two in P ( P 03941811 and P 03941812). The sheet CAL 0000016269 is well preserved with similar writing in the protologue as ‘Zeylon, not very common upto an elevation of 3000 feet’ is selected here as the lectotype and the other specimens as isolectotypes.

Figures

FIG. 2. — Lectotype of Ixora thwaitesii Hook.f. (CAL [CAL0000016269]). © The Director, Botanical Survey of India, Kolkata (reproduced with permission).