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to. PIPTOCOMA Cass. Bull. Soc. Philom. 1817: 10. 18147 
Heads about 8-11-flowered; involucre campanulate; scales im- 
bricated in several series; receptacle flat; corollas regularly 5- 
cleft; anthers sagittate, obtuse at the base; achenes 5-angled ;’ 
pappus double, the outer of short scales, the inner of elongate, 
linear, somewhat twisted, caducous scales. Shrubby; heads in ter- 
minal corymbiform clusters; leaves ferruginous-tomentose beneath. 
A monotypic genus of Hispaniola, Porto Rico, and St. Thomas, 
closely related to Oliganthes, from which it differs in the many- 
flowered heads which are somewhat larger and less closely aggre- 
gated thanin that genus. Schultz did not consider these differences 
sufficient to warrant their separation, and united the two under the 
name Oliganthes. 
PIPTOCOMA RUFESCENS Cass. Zc. 1817 
Eupatorium domingense Sprengel, Syst. Veg. 3: 412. 1826. 
Oliganthes rufescens Sch.-Bip. Pollichia 20-21: 338. 1863. 
rubby, freely branching; stems angled, thinly cinereous or 
canescent, the young shoots strongly angled and ferrugineus; leaves 
Saegeea ea obtuse, narrowed at the base, 4-5 cm. long, 
5 e, green and finely stellate- Gel eae above, reticu- 
bee cael ee densely feracinote beneath; petioles 3 mm. long; 
involucre 4 mm. high, its scales closely imbricated, ovate, obtuse, 
all tomentose, the inner at the apex only; achenes nearly glabrous, 
2mm. long; pappus yellowish-white, 5 mm. Jong. 
Type locality: Hispaniola. 
Distribution: Hispaniola, Porto Rico and St. Thomas. 
1z. BOLANOSA A. Gray, Pl. Wright. 1: 82. 1852 
Heads large, many-flowered, I-2 cm. across, Single, or 2-5 in 
gra lually shorter; receptacle flat, bearing oblong, conduplicate, 
scarious scales 6-8 mm. long; corolla regular, §5-cleft; achenes 
irregularly angled, obtusely ro- -tibbed, turbinate, truncate; pappus 
in pee series, the outer of short flat linear acuminate scales, the 
inner f long linear scales. Floccose or tomentose herbs; leaves 
gienute, sessile 
A onoe pied genus of western Mexico. 
Botanosa Coutteri A. Gray. é. ¢. 
Stem erect, leafy, simple to the inflorescence or with a f 
branches in the axils above, floccose with white wool, becoming 
glabrous below; leaves ovate-lanceolate to narrowly elliptic- 
