7. Strobilanthes cruciata (Bremek.) Terao, Acta Phytotax. Geobot. 31 (1–3): 59. 1980.

Fig. 10 C

Tetragoga cruciata Bremk., Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk., Sect. 2. 41 (1): 300. 1944. Type: Indonesia, Sumatra, 1 May 1918, Lörzing 5668 (holotype L [L 0002848!]; isotypes BO [BO 1352476 image!, BO 1352477 image!], GH [GH 00295522 image!], SING [SING 0045507 image!]).

Tetragoga nagaensis Bremek., Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk., Sect. 2. 41 (1): 299. 1944. Type: India, Nagaland, Dec 1907, Meebold 4891 (holotype B [B 100002761 image!]).

Type.

Based on Tetragoga cruciata Bremk.

Distribution.

India, Myanmar, China, Thailand, Vietnam, Indonesia.

Ecology.

In hilly evergreen forest; 150–1,700 m alt, flowering and fruiting from July to May.

Selected specimens examined.

Thailand, Northern: Nan, Doi Phu Kha NP, 1,700 m alt., 28 July 1992, Larsen et al. 43704 (AAU, P); ibid., 1,700 m alt., 26 May 2000, Srisanga 1445 (QBG); ibid., 1,680 m alt., 11 Nov 2000, Srisanga 1758 (BKF- 2 sheets, QBG); ibid., Pua, 1,650 m alt., 10 May 2006, Srisanga 2762 (CMUB, KYO, QBG); Peninsular: Chumphon, Marine Nature Study Center, 9 Apr 2008, Wessumritt 113 (QBG); ibid., Phato, Ban Racha Krude, 150–200 m alt., 6 July 1992, Larsen 43165 (AAU, BKF, P).

Preliminary conservation status assessment.

This species has an Extent of Occurrence (EOO) of 2,663,189.074 km 2 and an Area of Occupancy (AOO) of 44.000 km 2 and is assessed as Least Concern (LC) following IUCN (2022).

Notes.

Strobilanthes cruciata resembles S. falconeri T. Anderson in having leaf-like bracts with a petiolar base, but it is distinguishable from S. falconeri T. Anderson by its white corolla and glabrous ovary.