Viola angkae Craib 

Viola angkae Craib 

Kew; BGO Plant Databases

Description: Herba nana, caulibus ad 6 cm. longis glabris. Folia oblata, basi cordata, apice saepissime breviter acuminata, ad 1-2 cm. longa et 2.4 cm. lata, sicco subcoriacea, supra marginem versus pilis paucis instructa, subtus glabra, e basi 5-nervia, nervis utrinque subconspicuis, margine crenulata, basalia petiolo ad cm. 5.5 longo, superiora petiolo saepissime 5-10 mm. longo suffulta; stipulae 2-2.5 mm. longae, circa 1.5 mm. latae, apice patici- denticulatae, summo apice hydathodo-apiculatae. Flores lutei, purpureo-lineati (ex Kerr), axillares, pedicellis ad 1.5 cm. longis glabris suffulti. Sepala inter se subaequalia, circa 4 mm. longa et 0-75 mm. lata, glabra, hydathodo-apiculata, basi brevissime producta. Petala superiora oblongo-obovata, apice rotundata, 6 mm. longa, 2-6 mm. lata, lateralia superioribus similia sed paulo latiora, infimo lateralibus simili nisi paululo breviore; calcar obtusum, circa 1-5 mm. longum. Filamenta brevia, antheris circa 0-8 mm. longis, appendice 0-5 mm. longa. Ovarium glabrum, stylo 1-5 mm. longo. Capsula 6 mm. longa, straminea; semina subellipsoidea, circa 1-5 mm. longa 

Distribution: Native Asia-Tropical INDO-CHINA: Thailand [Doi Angka, Pa Ngem]

Habitat: between tufts of short grass on open slops.  c. 2100 m., 

Reference:

• Craib WG (1925) Contributions to the Flora of Siam. Additamentum XV. Bulletin of Miscellaneous Information (Royal Gardens, Kew) 1925(1): 7. doi: 10.2307/4107434.