LUNDELL: THE GENUS PARATHESIS 71 
petioles up to 2.5 cm. long; leaf blades oblong, narrowly oblong-elliptic or 
lanceolate, 8-35 cm. long, 3-7 em. wide, apex and base acuminate, margin 
obscurely crenulate and repand, thin, membranaceous, drying brown and slightly 
paler beneath, at first sparingly pubescent above with stellate hairs mostly at 
base along midvein and sparsely lepidote, bizonal beneath, the ferruginous 
pubescence of fine sessile closely appressed stellate hairs, glabrescent, the costa 
elevated beneath, nearly plane above, the primary lateral veins very slender, 
obscurely reticulate; inflorescences terminal, tripinnately paniculate, pyramidal, 
5-18 cm. long, finely tomentose with ferruginous closely appressed stellate 
hairs and densely papillose-puberulent; pedicels slender, 1-4 mm. long, densely 
papillose; flowers umbellate or subcorymbose-umbellate, up to 4 mm. long at 
anthesis, papillose-puberulent; sepals triangular, acute, usually less than 1 
mm. long, punctate; petals linear-lanceolate, 3-4 mm. long, papillose-tomentu- 
lose apically and along margins, black-punctate in lines; stamens 2-2.7 mm. 
long; filaments thick, 1-1.4 mm. long; anthers erect, dorsifixed one-third above 
base, ovate-oblong, 1.8-2.2 mm. long, acutish, with small punctate area dorsally, 
the glands black; ovary pilose-tomentose apically, often not densely so; style 
about 4 mm. long, with a few hairs at base; ovules 4-7, oblong-elliptic, large, 
uniseriate, enclosed. 
MEXICO.—Tasasco: without locality, Z. P. Johnson 123 (NY). Veracruz: June—Oct. 
1840, H. Galeotti 7108 (G, K); Papantla, June, 1841, F. M. Liebmann s.n. (MO); Mirador, 
1841-43, F. M. Liebmann 12 (UC); Papantla, June, 1841, F. M. Liebmann 13 (US); Papantla, 
Oct. 1842, F. M. Liebmann 13 (C, NY, US); Orizaba, 1853, Fred Muiller 1882 (NY); Rio 
Huatusca, May 17, 1857, Charles Mohr 131 (US); Orizaba region, May 28, 1865-1866, M. 
Bourgeau 2450 (8, type; GH, K, LL, US, isotypes); Valley of Cordoba, Dec. 12, 1865-1866, 
M. Bourgeau 7531 (GH, K); Zacuapan, Santa Ana, May, 1906, C. A. Purpus s.n. (UC); 
Zacuapan, banks of streams, moist localities, 1922, 1926, 1927, 1930, C. A. Purpus 10716 
(A, C, G, LL, MICH, 8, UC, US); Cordoba, Aug. 1936, Hizi Matuda 2270 (MICH); Ixtaczo- 
titlan, 10 km. southeast of Orizaba, on lower slopes of El Cerro de Tuxpango, May 29, 1944, 
Jose Vera Santos 2972 (LL, MICH), shrub 3 m. tall, fl. perianth red-purple, “capulincillo.”’ 
INDEFINITE: without locality, C. J. W. Schiede s.n. (P). 
Of the mainland species, P. oblongifolia appears to be nearest P. crenulata 
(Vent.) Hook.f. From the West Indian plant, it may be separated at once by its 
very thin, often large, obscurely reticulate leaves which are widest at or below 
the middle. In P. crenulata, the leaves are oblanceolate and always widest above 
the middle, and the ovary is very sparsely pubescent apically, often glabrescent. 
Furthermore, the anthers, usually smaller and less punctate dorsally, the sepals 
rarely exceeding 1 mm. in length, the shorter pedicels, and the petals mostly 
3-4 mm. long, are other differences which set apart the Mexican species. 
23. PARATHESIS ELLIPTICA Lundell, Wrightia 3:63. 1963. Fig. 22 and Plate 12. 
Shrubby, branchlets rather stout, blackish-brown, the indument minute, 
closely appressed and stellate-lepidote, glabrescent early; leaves with slender 
marginate petioles 8-15 mm. long; leaf blades elliptic, 7.5-15 em. long, 3-6.5 
em. wide, apex subabruptly acuminate or acuminate, base acutish and decurrent, 
inconspicuously crenulate-serrulate, slightly rugulose, membranaceous-char- 
taceous, ferruginous-tomentose on undersurface at first with appressed stellate 
hairs, glabrescent early, probably bizonal but inconspicuously, the midvein 
