Rusby : Ax Enumeration of South American Plants 27 



LENTIBULACEAE 



Utricularla alpina Jacq., Enum. PL Carib. II. Mapiri, 8000 

 ft., May, 1886 (no. 2765). The same collected by Bang. 



Utricularia pusilla Vahl. Enum. 1 : 202. Yungas, 4000 ft., 

 1885 (no. 1357). / 



Pinguicula antarctic a Vahl. Enum. 1 : 192 (?) Unduavi, 8000 

 ft., Oct., 1885 (no. 1356). Collected at the same place by Pearce. 

 Grows on wet mossy banks and rocks. 



GESNERIACEAE 



Achimenes Ritsbyi Britton, Mem. Torr. Club, 6: 95. Yungas, 

 4000 ft, 1885 (no. 1 102). 



Achimenes gracilis Britton, sp. nov. 



Sparsely strigose ; stems 3-5 dm. long, simple, erect or ascend- 

 ing, slender and weak, coarsely angled and sulcate, from a finely 

 many-branched root : leaves opposite, those of the pair somewhat 

 unequal; petioles .4-1 cm. long, weak : blades .6-1 dm. long, 

 2. 5—3. 5 cm. broad, oblong, inaequilateral, narrowed or acuminate 

 at the base, rather abruptly short-pointed and acute at the apex, 

 entire, very thin, deep green above with the very slender venation 

 inconspicuous, pale underneath with the midrib and about 6 pairs 

 of very strongly ascending secondaries slightly prominent : pedi- 

 cels 5-8 cm. long, filiform : calyx-tube turbinate, 4-5 mm. long, 

 the lobes narrowly linear, the longest nearly 1 cm. long : corolla 

 crimson, the tube 2 cm. long, campanulate, somewhat ventricose, 

 the spreading limb nearly 2 cm. broad: stamens equaling the 

 corolla-tube or slightly exserted, the filaments very slender. 



Yungas, 6000 ft., 1885 (no. 2421). Dr. Britton thinks that 

 Pearce's plant, collected at Los Pifios, 6000 ft., Mar., 1864, is of 

 this species. 



Seemannia tendfolia Regel. Gartenfl. 4: 183. pi 126. 1855. 

 Unduavi, 8000 ft., Oct., 1885 (no. 1101). The same as 



Matthews 



no. 1335. 



Seemannia sylvatica (H.B.K.) Hanst. Linnaea 29: 540. 

 1857-8 {Gesnera sylvatica H.B.K. Nov. Gen. et Sp. 2: 393. 

 Yungas, 4000 ft., 1885 (no. 1 100). The same also collected by 

 Bang. 



Koellikeria argyrosligma (Hook.) Regel. Fl. 250. 1848. Ma- 

 Piri, 2500 ft., May, 1886 (no. 2658). 



