116 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Malache maxonii Standley, sp. nov, 
Stems herbaceous, about 70 cm. high, stout, branched, densely hispid with stiff, 
fulvous, stellate or sometimes simple hairs; petioles stout, 7 to 30 mm. long, hispid 
like the branches; leaf blades obovate to rhombic-obovate or oblanceolate-oblong, 10 
to 18 cm. long, 3 to 7 cm. wide, acute to somewhat abruptly acuminate, narrowed to 
the base, coarsely and very irregularly crenate, sometimes doubly crenate, some of the 
lobes often much enlarged, hispidulous on both surfaces with stiff, spreading, yellowish, 
simple or stellate hairs, more densely so beneath; stipules linear-subulate, 9 to 12 mm, 
long; peduncles axillary ‘or terminal, loosely branched, hispid, 8 to 15 cm. long; 
pedicels 1 to 10 cm, long, elongating in age, sparsely hispid or glabrate; bracts at the 
base of the pedicels 5 to 9 mm, long, hispid, 3-parted into linear lobes; involucral 
bracts 10 to 12, linear, about 8 mm. long, united only at the base, hispidulous with 
simple or 2-parted hairs; calyx scarcely more than half as long at the bracts, finely 
pubescent with short stout stellate hairs, the lobes broadly triangular; corolla pink, 8 
to 10 mm. long, the petals finely and sparsely stellate-pubescent on the outer surface; 
carpels of the fruit 7 mm. high, thin-walled, smooth on the back, glabrous, each bear- 
ing 3 slender, erect, retrorsely barbed beaks of about the same length. 
Type in the U. 8. National Herbarium, no. 693056, collected on a partially shaded 
bank by the trail in the forest along the Rio Ladrillo, above El Boquete, Chiriquf, 
Panama, at an altitude of 1,200 to 1,300 meters, March 17 to 19, 1911, by William R. 
Maxon (no. 5394). Additional material of the same collection is mounted on sheets 
nos, 675761 and 675762. Also collected by Mr. Pittier (no. 3287) in the same locality 
at the same time. 
In general appearance this resembles M. rosea, but it is amply distinct in the 3- 
parted bracts and coarse pubescence. The inflorescence, too, is not congested asin 
that species, but is loose and open. The proposed species is related to two South 
American ones, Malache peruviana and M. warmingiana, both of which have very 
different involucral bracts. 
Malache panamensis Standley, sp. nov. 
Annual, 1 meter high or less, simple at the base, with numerous ascending branches 
above; branches slender, minutely cinereous, with an admixture of long soft white 
hairs above, especially on the peduncles; leaves rather numerous, ovate to oblong- 
ovate or lanceolate, 3.5 to 7 cm, long, 1.6 to 3.2 cm. wide, rather abruptly acuminate, 
rounded to subcordate or cordate at the base, the lobes often overlapping, coarsely 
but evenly serrate, the teeth acute, 3 or 5-nerved, when 5-nerved the two lateral 
nerves less conspicuous than the others, bright green on the upper surface but sparsely 
scaberulous, dull and slightly paler beneath and sparsely pubescent with very slender 
short stellate hairs; petioles slender, 1.6 to 3.2 cm. long, cinereous and often pilose; 
stipules subulate, 3 mm. long or less, early deciduous; pedicels 1-flowered, solitary 
in the axils, slender, 2 to 3 cm. long, ascending, jointed above the middle, pilose or 
short-pubescent; involucral bracts usually 8, linear, 6 to 8 mm. long, acute, hirsute- 
ciliate and slightly cinereous; calyx half to two-thirds as long as the bracts, cleft 
halfway to the base or more, the lobes oblong-lanceolate to triangular, acute, 3-nerved, 
ciliate and somewhat hirsute, whitish near the base but green near the tip; corolla 
white, the petals spreading, broadly oblong, rounded or emarginate, short-clawed, 
ciliolate, sparingly pubescent on the outer surface; stamen tube less than half as 
long as the petals, glabrous; styles 10, spreading, stout, little exceeding the stamen 
tube; stigmas capitate, rounded, pubescent; carpels 5, about half as long as the 
bracts, rounded at the apex, glabrous, smooth or obscurely nerved; seeds very dark 
brown, pubescent with short coarse appressed hairs. 
Type in the U.S. National Herbarium, no. 677212, collected on the edge of the 
forest, Sabana de Panama, Canal Zone, Panama, altitude 10 to 50 meters, January 25, 
1911, by H. Pittier (no. 2548). 
