LUNDELL: THE GENUS PARATHESIS 157 
MEXICO.—Cutapas: Cerro del Boqueron, June, 1914, C. A. Purpus 7335 (F, GH, NY, 
UC, US). 
GUATEMALA.—San Marcos: along Quebrada Canjula, between Sibinal and Canjula, 
Volcan Tacana, alt. 2200-2500 m., Feb. 18, 1940, Julian A. Steyermark 36023 (F, type; MICH, 
isotype), tree 50 ft. tall; leaves subcoriaceous, dull green above, tan beneath, petals white 
within, brownish without; Volean Tajumulco, upper south-facing forested slopes, between Las 
Canojas and top of ridge, 7 miles from San Sebastian, alt. 3300-3900 m., Feb. 16, 1940, Julian 
A, Steyermark 35806 (F), common large forest tree 50 ft. tall, tips of shoots brownish, leaves 
coriaceous, rich green above, pale beneath, “sapotilla.” Soto.a: Volcan Santa Clara, south- 
facing slopes to summit, alt. 2100-3000 m., June 5, 1942, Julian A. Steyermark 46957 (F), 
leaves dark green above, olive-brown beneath; Volean Toliman (slopes above San Lucas 
Toliman), alt. 1800-3000 m., June 13, 1942, Julian A. Steyermark 47606 (F, US), tree 30 ft. 
tall. SucnrrePrEqueEz: Volcan Santa Clara, between Finca El Naranjo and upper slopes, alt. 
1250-2650 m., May 23, 1942, Julian A. Steyermark 46754 (F, 8), tree 40 ft. tall. QUICHE: 1942, 
Jose Ignacio Aguilar 1345 (F). 
60. PARATHESIS TOMENTOSA Lundell, Wrightia 3: 74. 1963. Fig. 58 and Plate 27. 
Small tree, branchlets slender, minutely appressed tomentulose at first, 
glabrescent; leaves with slender petioles 5-14 mm. long; leaf blades obovate or 
obovate-elliptic, 5-9.5 em. long, 3.5-4.5 em. wide, apex rounded and abruptly 
short acuminate, base cuneate, membranaceous, very sparsely and minutely 
stellate-lepidote on lower surface at first, essentially glabrous, pellucid-punctate, 
finely crenulate above, costa elevated beneath, plane above, primary lateral 
veins slender, 8 or 9 on each side, prominent beneath; inflorescences axillary and 
terminal, paniculate, up to 5 cm. long, 1- or 2-branched to base, few-flowered, 
sparsely puberulent, the branches very slender; pedicels filiform, 5-9 mm. long, 
sparsely and minutely puberulent; flowers corymbose; sepals subulate, 1-1.2 mm. 
long, pellucid-punctate, puberulent; petals linear-lanceolate, 3.5 mm. long, 
sparingly and minutely puberulent on outer surface, densely papillose-tomentose 
over entire inner surface, orange-punctate; ovary ovoid, tapering into style, 
densely tomentose over entire surface; style about 2.75 mm. long, tomentose to 
middle; placenta depressed-globose, short apiculate; ovules 8 or 9, uniseriate, 
apparently enclosed. 
GUATEMALA.—InperiniTE: Los Andes to Entre Rios, March 1, 1926, S. J. Record 
G.44 (US, type; Y, isotype), small tree, “‘chimiche.”’ 
Possibly related to P. Rekoi Standl., the species is altogether different in its 
small terminal inflorescences branched to base, obovate leaves, and densely 
tomentose ovary and style. No other species of Parathesis has the ovary so 
densely matted over its entire surface with tomentum extending to middle of 
style. 
The specimen available does not have flowers, so the nature of the stamens is 
not known. The corolla is described from a single loose petal attached to a pedicel. 
This petal is papillose-tomentose over the entire inner surface. 
61. Paratuesis Sxurcum Lundell, Contr. Univ. Mich. Herb. 6: 54. 1941. 
Fig. 59 and Plate 28. 
Shrub or tree, up to 10 m. high, branchlets angled, stout, the indument of 
terminal buds and apical internodes smooth and closely appressed, tan in color, 
the branchlets at length minutely appressed-lepidote; leaves with petioles 
