LUNDELL: THE GENUS PARATHESIS 101 
than 2.5 mm. long, and ovate anthers dehiscent by small apical pores. It ap- 
proaches P. fusca Oerst. The hairs at base of style, and shorter pedicels ap- 
parently distinguish it from that species, as now interpreted. 
34. PARATHESIS LANCEOLATA Brandeg., Univ. Calif. Pub. Bot. 6: 188. 1915. 
Fig. 33. 
Shrub or tree, twigs rather slender, minutely ferruginous-tomentose; leaves 
with slender petioles up to 1 em. long, ferruginous-tomentose beneath, canali- 
culate; leaf blades lanceolate or oblanceolate, 8-15 em. long, 2-4.5 em. wide, 
apex and base acuminate, the apex subcaudate, the base decurrent on the 
petiole, thin, paler beneath, entire or essentially so, pubescent beneath with 
small fine stellate appressed reddish hairs, bizonal, glabrescent, pellucid-punctate, 
costa elevated beneath, the veins obscure; inflorescences terminal, laxly pani- 
culate, the branches very slender, pyramidal, up to 18 em. long, exceeding the 
leaves, minutely ferruginous-tomentose; flowers small, corymbose or subrace- 
mose-corymbose, the rachis accrescent; pedicels slender, 2.5-4 (6) mm. long; 
flower buds ovoid, very minutely ferruginous-tomentose, about 4 mm. long 
before anthesis, the calyx and corolla black-punctate in lines; sepals narrowly 
triangular, 0.8-1 mm. long; petals narrowly lanceolate, up to 4 mm. long, united 
at base, papillose-tomentose within except at base; stamens about 2.5 mm. long; 
filaments glabrous, black-punctate, up to 1.4 mm. long; anthers erect, lanceolate- 
oblong, 1.5-1.8 mm. long, dorsifixed one-third above base, with a conspicuous 
orange- or black-punctate area dorsally, with glands sometimes extending into 
lobes, apex obtuse and minutely apiculate; ovary glabrous or sparsely hairy 
apically, style with a few scattered hairs at base, the style up to 3.5 mm. long; 
placenta minute, subglobose; ovules 4 or 5, uniseriate, enclosed. 
MEXICO.—Curapas: Finca Mexiquito, July, 1913, C. A. Purpus 7021 (BM, F, GH, 
MO, NY, UC, US); Cerro del Boqueron, Sept. 1913, C. A. Purpus 7095 (UC); Finca Irlanda, 
June, 1914, C. A. Purpus 7371 (UC, type; A, BM, F, GH. LL, MO, NY, US, isotypes); Mt. 
Ovando, Apr. 9-12, 1937, Eizi Matuda 1851 (MICH). 
P. lanceolata is noted for its large laxly paniculate inflorescences with very 
slender weak pendent branches and small flowers. In some characteristics the 
species resembles P. columnaris Lundell. 
35. ParaTuEsis LAXA Lundell, Wrightia 2: 66. 1963. Fig. 34. 
Tree, twigs with minute closely appressed reddish tomentum and _papillose; 
leaves with marginate petioles up to 2 em. long, at first with minute closely 
appressed tomentum on undersurface, papillate and canaliculate above; leaf 
blades lanceolate, 10-20 em. long, 4-7 em. wide, apex and base acuminate, thin, 
obscurely crenulate, pellucid-punctate, undersurface covered at first with fine 
stellate, silky hairs very closely appressed, glabrescent, upper surface glabrous 
excepting the sparsely papillose costa, the costa and lateral veins elevated 
beneath, shallowly impressed above; inflorescences terminal, up to 30 cm. long, 
20 cm. wide at base, open, lax, and remotely branched, with rather sparse minute 
closely appressed tomentum and papillose-puberulent; flowers in umbels, the 
umbels mostly 1- to 5-flowered; the pedicels slender, papillose, 3-7 mm. long; 
buds narrowly ovoid, 5-6 mm. long; calyx punctate, papillose, the sepals 1—1.3 
mm. long, acuminate; petals up to 6 mm. long, united at base, orange-punctate 
