Bulbophyllum cariniflorum Rchb.f. var. orlovii Aver., var. nov.
NW. Vietnam, Lai Chau province, Sin Ho District, Sa De Phin, 22?18?55.0??N, 103?13?31.8??E, remnants of highly degraded primary forest among limestone outcrops on rocky slopes of karstic stream valley at elevation 1690 m a.s.l., epiphyte on tall trees, 1 June 2017, N.L. Orlov, L.K. Iohanssen, s.n. Flowered under cult. in 24 July and later in early August 2017, AL 275. Photos.