( 160 ) 
Guatemalan plants tend to show relatively narrower leaves, less 
broadly rounded below, and with a softer grayish-brown tomentum. 
Baker’s type was probably like the latter, since in his description 
he speaks of oblong leaves, pale brown-pubescent beneath. How- 
ever, the two cannot be specifically separated. 
2. PIPTOCARPHA TETRANTHA Urban, Symb. Ant. 1: 457. 1Ig00 
rubby; branches striate, closely and pes ata a a aco 
ro broadly elliptic to elliptic-oblong, 3.5-10 cm. long, 2-4 cm 
wide, obtuse or rounded, entire, rounded at base, oe te lee 
green, glabrous and shinin above, finely cinereous-tomentose be- 
neath, aaa tia aes veined, the petioles I-1.5 cm. lo ong, 
a dense small aaa panic e; involucre ovoid, 6 mm. long; scales 
ovate, tomentose, the inner oblong, glabrous below, densely tomen- 
tose at the tip; achenes 3-4 mm. long, glabrous, 10-ribbed; pappus 
4-6 mm. long, tawny-white, the outer series short. 
Type locality and distribution: Porto Rico. 
The two sheets examined present striking dissimilarity in the 
foliage. In one, S¢tends 608%, the leaves are of an oblong type, 
8-10 cm. long and about two and a half times as long as wide; in 
the other, Szztenzs gor7, they are ere ovate-elliptic, the 
largest only 5 cm. long, and over half as e. There is apparently 
no other difference between the two. This species has been referred 
to in literature as Péptocarpha triflora Baker, a Brazilian species 
which it closely resembles. 
ExcLuDED SPECIES 
Piptocarpha sexangularts Klatt * has opposite leaves, with con- 
nately dilated petioles, multistriate scales and uniseriate pappus. 
It belongs probably to the Eupatorieae, certainly not to the Ver- 
nonieae. 
5. LACHNORHIZA Rich. in Sagra, Hist. Fis. Pol. Nat. Cuba 
I: 34. 1850 
Heads many-flowered; involucral scales imbricated in few series ; 
receptacle flat; corolla regular, 5-cleft; anthers sagittate, the lobes 
acute at the base; achenes prismatic, obscurely ribbed; pappus 
capillary, of numerous bristles in one series. Scapose perennial 
* Bull. Soc. Bot. Belg. 35: 278, 1896. 
