(159 ) 
species none. Shrubs, frequently climbing; leaves large, usually 
entire, coriaceous, and tomentose with stellate hairs or scaly beneath. 
Type, P. drasitiana Cass. Dict. Sci. Nat. 41: 109. 1826. 
Species about 28, in the American tropics from Mexico and Porto 
Rico to Brazil. 
In the original description of the genus * Brown did not cite or 
describe a species. The next author to use the name was Cassini, 
who without seeing any specimens gave the specific name éraséZi- 
ensts to the plant described by Brown, using for that Brown’s own 
characters. P. drastléana is not mentioned by Baker in his treat- 
ment of the genus in the Flora Brasiliensis, but it is evidently P. 
umbellulata Baker (=P. Brownti DC.). 
Heads mostly 6-flowered, corymbose in the axils. . P. chontatensis. 
Heads mostly 4-flowered, in terminal corymbiform costes 
. P. tetrantha. 
1. PipTOCARPHA CHONTALENS!S Baker, Fl. Brasil. 6%: 132. 1873 
Piptocarpha costaricensts Kliatt, Prim. Fl. Costar. 1%: 120. 
1893. 
Shrubby; branches faintly striate or terete, slightly flexuous, 
thinly el tomentose ; gale coriaceous, oblong-ovate to ovate, 
10-18 cm. 2 4. pa 10 cm. wide, acute or abru uptly short-acumi- 
nate, entire or eee Genticulets, obliquely and unequally 
rounded at the base, dark-green, glabrous and shining above, dull- 
green and closely cinereous beneath, the petioles 1-1.5 cm. long; 
axillary corymbiform clusters, 6-flowered, sessile in clusters of 2-3 
terminating tomentose peduncles; involucre ovoid, 3-4 mm. high; 
scales closely imbricated, appressed, ovate, obtuse or rounded, the 
outer tomentose, the inner glabrous except the tomentose tip, decid- 
ee 3mm. long, glabrous or with a few scattered hairs; pappus 
ite, 6-7 mm. long, oe of the outer series short, barely dis- 
eae from the inne 
Type locality: « Nise in ditione Chontales.” 
Distribution: Guatemala, 7uirckheim 7892, Watson 3726, Costa 
Rica, Prttéer 4927, 12153, 3704, Donnell Smith 6613, 4846, Ton- 
duz 13276, and Nicaragua. 
A well-marked species, rather variable in leaves and pubescence. 
Klatt’s species is founded on a Costa Rican form with leaves more 
than half as wide as long and finely gray-tomentose beneath. The 
* Trans, Linn. Soc. 12: 121. 1816. 
