189. Willowsia bartkei Stach, 1965

Willowsia bartkei Stach, 1965: 361 .

Distribution in Vietnam. In forest, cultivated land, garden, urban soil.

Northwest: Lào Cai ( Hoàng Liên national park; Sa Pa). Sõn La (Cò M ạ; Cò Nòi; Co Sau).

Northeast: Bắc Kạn (Na Rì). Cao Bằng (Vân Trình).

Red River Delta: Hà N ội (Ba Vì national park; Cầu Gi ấy; Đông Anh; Đống Ða; Gia Lâm; Hai Bà Trýng; Hoàn Ki ếm; Mê Linh; Sóc Sõn; Tây H ồ; Thanh Trì; Thanh Xuân; T ừ Liêm).

Mekong River Delta: An Giang.

Authorship. DO: Stach 1965.

RD: Nguyễn T.T. 1994, 2017; Zhang 2015.

TN: Zhang et al. 2011a.

EC: Nguyễn T.T. & Nguyễn T.T.A. 2001a; Nguyễn T.T. et al. 1999; Vũ T.L. et al. 2005.

CI: Nguyễn H.L. et al. 2013; Nguyễn T.T.A. 2009; Nguyễn T.T.A. & Lê Q.D. 2011; Nguyễn T.T.A. et al. 2021; Nguyễn T.T. 1995c, 2003a; Nguyễn T.T. et al. 2005, 2011.

Type locality. Sa Pa, Lào Cai province (Vietnam).

General distribution. Known only in Vietnam.

Remarks. In the original description no type was chosen. Therefore, the listed specimens are regarded as syntypes (even though Zhang (2015) calls them paratypes). Syntypes in ISEA .