151 



above, rounded beneath; leaflets 3 to 5, the petiolules 0.5 

 to 4.5 cm. long (the lateral ones shorter), the blades ovate, 

 cuneate and often with a black spot at the base, shortly- 

 acuminate, 6 to 15 cm. long, 2.5 to 7.5 cm. broad (the late- 

 ral ones smaller), minutely scaly on both sides, light green 

 above, ^^aler beneath; costa and nerves prominent on the 

 lower face, often dark colored on young leaves. Iixf lorescen- 

 ces terminal, corymbose, many flowered; peduncles dichoto- 

 mous, minutely scaly; pedicels 4 to 8 mm. long; calyx tubu- 

 lar-campanula te , subbilabiate, irregularly lobulate, 10 to 

 11 mm. long, persistent; corolla pale pink, tubular-campanu- 

 la te, glabrous without, piloculous within, the tube rather 

 narrow, abcut 3.5 cm. long; stamens 4, glabrous; pistil 2 to 

 2.5 Ci.!. long, the ovary minutely scaly, the stigmas ovate 

 acute. Capsule subGyllndrioal, stipitate, cuspidate, 13 to 

 28 cm. long, ) 



Descgiption of the wood 



3apv/ood thick, light yellowish brown; heartwood slightly 

 darker. vVood rather hard, heavy, strong, tough, moderately- 

 fine and cross-grained, taking a fairly good polish, and 

 very durable in contact with the soil, Annual rings of 

 growth visible only under high power microscope. 



Pores (transverse section) rather numerous, (about .14 

 mm. in diameter), round or polygonal when isolated, open, 

 and arranged wingly, in pairs, or small groups, generally 

 in threes. Vessel walls (longitudinal section) .vith nume- 

 rous, rather large, bordered pits. Perforations simple. 

 Wood fibers about .9204 mm. long, with rather thin walls, re- 

 latively large lumina , and small, slit-like, oblique, simple 

 pits. They are easily distinguished from the wood-parenchyma 

 fibers, which have thinner walls, larger cell cavities, and 

 are arranged in conspicuous tangential lines -iwhich alternate 

 with lines of wood fibers, xhe wood parenchyma usually 

 surrounds vessels, but the latter are not al'ways found within 

 the tangential lines of wood parenchyma, aays numerous, 

 small, not conspicuous on the transverse section - storied 

 as seen in tangential surface-, from 1 to 2 cells wide and 

 from 8 to 12 cells high. 



