xni, c, 3 Merrill: Flora of Loh Fau Mountain 159 



RUBIACEAE 



MYCETIA Blume 



MYCETIA COR I ACE A (Dunn) comb. nov. 



Adenosacme coriacea Dunn in Kew Bull. Add. Series 10 (1912) 130 

 (Fl. Hongkong & Kwangtung). 

 Kwangtung Province, Loh Fau Mountain (Lofaushan), Merrill 10S86, 

 10867, Levine 597, 1490, November, 1916 and August, 1917, a character- 

 istic undershrub along small streams, in thickets, altitude 900 to 1,100 

 meters. The specimens agree with Dunn's authentic material in the 

 Hongkong Herbarium, but I have adopted the generic designation My- 

 cetia in place of Adenosacme, as the former is the older name. 



HEDYOTIS Linnaeus 



,1 HEDYOTIS ACUMINATISSIMA sp. nov. 



Herba erecta, glabra, ramosa, usque ad 75 cm alta, basi sublig- 

 nosa, caulis infra teretibus, supra cum ramis 4-angulatis ; f oliis 

 lanceolatis, chartaceis, scaberulis, usque ad 7 cm longis, basi 

 acutis vel decurrento-acuminatis, apice tenuiter acuminatis, ner- 

 vis utrinque 3, adscendentibus, perspicuis, supra impressis, subtus 

 prominulis; stipulis ovatis, circiter 2 mm longis, denticulatis, 

 apice plerumque 3-laciniatis ; cymis axillaribus terminalibusque, 

 circiter 4 cm longis, laxis; floribus albidis, corollae laciniis lan- 

 ceolatis, recurvatis, 5 mm longis, intus villosis, tubo circiter 1.8 

 mm longo. 



An erect, branched, glabrous herb attaining a height of 75 

 cm, the lower part of the stem terete, 3 to 4 mm in diameter, 

 the internodes 4 to 7 cm long, unbranched in the lower 20 to 

 40 cm, the upper parts of the stem and the branches rather 

 sharply 4-angled, the branches 20 to 30 cm in length. Leaves 

 opposite, lanceolate, chartaceous, somewhat scaberulous, greenish 

 or yellowish-green when dry, 4 to 7 cm long, 1 to 1.5 cm wide, 

 the base acute or decurrent-acuminate, the apex slenderly and 

 sharply acuminate; lateral nerves 3 on each side of the midrib, 

 ascending, impressed on the upper surface, prominent beneath, 

 anastomosing, the reticulations few, lax; petioles about 5 mm 

 long ; stipules ovate, about 2 mm long, their margins denticulate, 

 the apex usually cleft into three laciniae. Cymes terminal and 

 axillary, about 4 cm long, rather lax, few-flowered, the bracteoles 

 lanceolate, 1 to 1.5 mm long, the pedicels 2 to 4 mm in length. 

 Calyx-tube terete, ovoid, about 2 mm long, the lobes oblong-ovate, 

 acute, 1 mm long. Corolla white, the tube about 1.8 mm long, 

 the lobes 4, lanceolate, recurved, densely villous inside, about 5 

 mm long. Style 8 mm long. 



