xm.c,8 Merrill: Flora of Loh Fau Mountain 133 



least 1 cm long, the glumes ovate-lanceolate to lanceolate, slen- 

 derly acuminate by the excurrent midrib, pale, 2 to 3 mm long. 

 Utricles about 3 mm long, prominently ribbed, glabrous or nearly 

 so, somewhat flask-shaped, prominently beaked. Achenes 3- 

 angled, 2 mm long, rather prominently beaked, narrowed below 

 and above, the beak thick, cylindric, truncate, about 0.3 mm long. 



Kwangtung Province, Loh Fau Mountain (Lofaushan), Merrill 10985, 

 August 12, 1917, on dry banks in ravines, in dense bamboo thickets, altitude 

 about 1,000 meters; very rare. 



I was at first disposed to refer this to Carex rhynchachaenium Clarke, 

 of Luzon, which it closely resembles and to which it is closely allied. It 

 differs constantly from our full series of Philippine specimens in the 

 characters indicated in the diagnosis and is, I believe, specifically distinct. 



CAREX DON I AN A Spreng. Syst. 3 (1826) 825. 



Kwangtung Province, Loh Fau Mountain (Lofaushan), Merrill 10971, 

 Levine UU, August 13, 1917, in swampy places in the shade of coarse 

 grasses and sedges, altitude about 1,050 meters; rare. 



Although the spikelets are at most 1.5 cm long, I believe that this form 

 is referable to Sprengel's species, which extends from India to Japan. 

 Kukenthal does not recognize this form as specifically distinct, but treats 

 it as a variety of Carex japonica Thunb. 



CAREX TEINOGYNA Boott Illustr. Carex 1 (1858) 60, t. 158; Kukenth. 

 in Engl. Pflanzenreich 38 (1909) 602, /. 102 F-H. 



Kwangtung Province, Loh Fau Mountain (Lofaushan), Merrill 10178, 

 October 28, 1916, on moss-covered boulders in shaded stream beds in ravines, 

 locally very abundant, altitude about 1,100 meters. 



The specimen cited above was referred by me to the allied Carex brunnea 

 Thunb., but Mr. Tutcher has called my attention to the fact that it is not 

 the same as Thunberg's species and suggested its identity with Boott's 

 species. I have not seen the original description, but the specimen conforms 

 with Kukenthal's description and figure, and with Khasia specimens col- 

 lected by C. B. Clarke. The species occurs in India, with a variety in 

 Japan, but has not previously been reported from China. The plants 

 were very abundant and conspicuous in October, 1916, but none were in 

 evidence as late as August 27 the following year; they probably develop 

 very rapidly after the close of the rainy season. 



ARACEAE 



AGLAONEMA Schott 



AGLAONEMA MODESTUM Schott ex Engl, in DC. Monog. Phan. 2 (1879) 

 442, Pflanzenreich 64 (1915) 29, /. IS, Arac. Exsic. no. 74, 258. 

 Aglaonema acutispathum N. E. Br. in Gard. Chron. 24 (1885) 39. 

 Kwangtung Province, near Canton, Levine 1167, May 1, 1917. 

 The specimen is of considerable interest from the standpoint of the 

 history of this species. It agrees perfectly with the descriptions and figures 

 of Schott's species. The type (Gaudichaud) was supposed to have been 

 collected in Luzon, but although the regions that Gaudichaud visited in the 

 Archipelago are now all thoroughly well known botanically, this species 



