September 12, 1913] Rubiaceae from Mount Urpankta 1863 



glabrous. Leaves subniembranous, also descending, oblong 

 or seldom broadest above the middle, glabrous, drying very 

 unequally brown on the two sides, generally subfalcate toward 

 the sharply acute and slightly recurved apex, otherwise 

 nearly flat, in few opposite pairs toward the ends of the 

 branchets only, gradually tapering from the middle toward 

 the obtuse base, the larger ones 2.25 dm. long and 5 to 

 6 cm. wide, the smallest ones less than one half as large; 

 midrib smooth and ridged on both sides; lateral nerves in 

 the larger leaves about 10 pairs, subdivaricate and curved, 

 tips coarsely anastomosingly united, reticulations likewise coarse 

 and very evident from both sides; petiole stout, 1 cm. long, 

 flattened and somewhat rigid along the upper side; stipule 

 subpersistent, less than 1 cm. in length, its rim quite short 

 but with a long setaceous point. Peduncle dull incarnatus, 

 pendant, terminal, very flexible, glabrous, nearly 2 dm. long, 

 solitary, at the base subtended by stipular bracts and generally 

 with an additional foliaceous pair; branches forming a 

 corymbose panicle about 4 cm. high by 7 cm. in width, 

 the main branches repeatedly rebranched from above the 

 middle, all glabrate, red and subtended by diverse bracteoles; 

 pedicels erect, 3 mm. long; calyx elliptic, more contracted 

 toward the base, 3.5 mm. long, terminated by 4 apiculate 

 teeth, glabrous or minutely pulverulent, incarnatus especially 

 the apical portion; corolla 1.5 cm. long including the 5 mm. 

 long segments, glabrous, tube whitish; lobes 4, imbricately 

 twisted in the bud state, ovately elliptic, roseus; stamens 

 4, alternating with the segments; glabrous filaments short but 

 curved, inserted near the throat; anther 2.5 mm. long, 

 basifixed, lobed toward the base, pointed at apex, narrowly ob- 

 long; style slender, glabrous, the clavate stigma lobed; ovary 

 apex annular. 



Type specimen number 13767, A. D. E. Elmer, Cabad- 

 bamn (Mt. Urdaneta), Province of Agusan, Mindanao, Sept- 

 ember, 1912. 



In well drained soil of humid forests at 3000 feet alti- 

 tude along the Dalahion river side. "Bagobodon" is its 

 vernacular Manobo name. 



Its membranous leaves with more prominent nerves and 

 reticulations distinguish it as a variety. 



