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two dark brown flaps, the surface of the flaps glandular-puberulent, outside glandular- 
pubescent, inside glandular-puberulent; tube tubular, 24-26 mm long, orifice c. 18 
mm in diameter; limb distinctly 2-lipped, adaxial lip 2-partite for more than half of 
length, lobes slightly oblique to obviously oblique, triangular to ovate, adaxial lobes 
7-8 x 8-8.5 mm; abaxial lip 3-partite to half or slightly more than half of length, 
lateral lobes obliquely ovate to oblong, 12-14 x 6-8 mm, the central one oblong, 
c. 12 x 6 mm, all five lobes with 4-5 dark purple stripes which sometimes connect 
and become somewhat reticulate. Stamens 2, adnate to corolla tube c. 12 mm above 
the base; filaments white to pale purple, geniculate near the base, c. 11 mm long, 
glabrous; anthers fused by their entire adaxial surfaces, oblong, c. 3 x 1 mm, glabrous 
dorsally; staminodes 2, translucent to white, linear, apex capitate, glabrous, c. 7 mm 
long, adnate to corolla 10-12 mm above base. Disc purplish brown, annular, glabrous, 
1.3-1.5 mm high. Pistil 30-35 mm long; ovary cylindrical, 16-18 mm long, 1.8-2 mm 
in diameter, densely puberulent and glandular puberulent; style 15-17 mm long, c. 1 
mm in diameter, densely glandular puberulent. Stigma translucent to white and pale 
purple, cuneate, chiritoid, 2-lobed, 2.2-2.5 mm long. Capsule linear, slightly upward- 
curved, 5-6 cm long, surface densely puberulent when young. 
Distribution. Only known from the type locality, near Shijiaopen Village, Shitang 
Town, Quanzhou County, Guangxi Zhuangzu Autonomous Region, China. 
Habitat. Primary forest on shaded slopes and vertical cliffs in limestone valleys and 
hills, rare, at low altitude, c. 177 m. It occurs in crevices in limestone rocks under 
evergreen forest and is rather prone to human disturbance. 
Etymology. The new species is named after Ms Xiang-Hong Wu, who first discovered 
and collected this rare species and who accompanied us on a number of subsequent 
field expeditions in Quanzhou, Guangxi. 
Provisional IUCN Conservation Assessment. Critically Endangered CR B2ab(iii,v) 
according to the IUCN red list criteria (IUCN Standards and Petitions Subcommittee 
2016). We have visited the type locality of this new species many times and have 
found not more than 400 individuals which are scattered in a fairly narrow area at the 
top of a cliff. They grow in a popular scenic spot near the village of Shitang town, but 
most of the plants are protected from tourists by their elevated location. 
Vernacular name. The Chinese pronunciation of Primulina wuae is 
‘Wu Shi Bao Chun Jfi Tai\ 
Notes. Primulina wuae has a pair of relatively large bracts. Large bracts also occur in 
Primulina beiliuensis B.Pan & S.X.Huang (Pan et al., 2013), P. eburnea (Hance) Yin 
Z.Wang (Hance, 1883; Wang et al., 2011), P. lutea (Yan Liu & Y.G.Wei) Mich.Moller 
& A.Weber (Liu & Wei, 2004; Weber et al., 2011), P. lunglinensis (W.T.Wang) Mich. 
Moller & A.Weber (Wang, 1981; Weber et al., 2011), P. lungzhouensis (W.T.Wang) 
