1372 APPENDIX 



lucres peduDcled; bracts various, the outer herbaceous, the inner chaffy, 5-6 mm. 

 long, narrowly linear: achenes 2.5 mm. long. 



In rocky pine lands, southern peninsular Florida. Also in the Bahamas. Spring. 



Page 1237, in the thirteenth and fourteenth lines of the key to Gnaphalium, 

 transpose the words " copiously ' ' and " sparingly. " 



Page 1240, after Acanthospermum humile, insert: 



la. Acanthospermum hispidum DC. Stems erect, 1 m. tall or less, widely 

 branched: leaf -blades ovate, oblong or oval, 3-5 cm. long, obtuse, shallowly toothed, 

 copiously pubescent, more or less cuneate at the base, sessile: involucres campanulate: 

 bracts (outer) oblong to ovate, long-ciliate: mature inner bracts of the involucre 

 similar to those of A. humile. Differs from A. humile in the erect habit, the larger, 

 shallow-toothed, broad-based leaf-blades and the long-ciliate outer involucral bracts. 



In waste places and on roadsides, southern Georgia and western Florida. Naturalized 

 from South America. 



Page 1251, after Melanthera lanceolata, insert: 



4a. Melanthera ligulata Small. Foliage finely pubescent. Stem commonly 

 branched at the base and above, the branches spreading or ascending, 4-7 dm. long, 

 finely pubescent: leaves conspicuously elongated; blades linear or nearly so, mainly 

 8-17 cm. long, irregularly toothed and sometimes salient at the base, attenuate into 

 long petioles: involucral bracts linear-lanceolate, 11-13 mm. long, finely pubescent; 

 the inner bracts lanceolate, 8-10 mm. long, acuminate: bractlets linear-lanceolate, 

 5.5-6.5 mm. long, pubescent at the tip: corollas 5-6 mm. long: achenes not seen. 

 Differs from M. lanceolata in the foliaceous involucre. 



In pine lands near Ft. Lauderdale, Florida. Spring and summer. 



Page 1251, after Melanthera deltoidea, insert: 



5a. Melanthera radiata Small. Stems from a thick root, radially spreading, 

 decumbent, 2-4 dm. long: leaves opposite; blades ovate in outline, 1-4 cm. long, more 

 or less distinctly hastate-lobed and irregularly toothed, rough-pubescent, short- 

 petioled: involucral bracts ovate to oblong-ovate, not surpassing the disk, the outer 

 ones 6-7 mm. long: corollas 6-8 mm. long: achenes 2.5-3 mm. long, slightly broad- 

 ened upward, very minutely papillose, with a prominent tip over each side. Differs 

 from M. deltoidea in the habit, the obtuse involucral bracts and the larger corollas. 



In rocky pine lands, southern peninsular Florida. All year. 



Page 1286, after Clappia suaedaefolia, insert: 



114a. PSILOSTROFHE DC. 



Perennial or sometimes annual caulescent herbs. Leaves alternate: blades spatu- 

 late to linear, entire or somewhat lobed. Heads radiate, corymbose, or sometimes 

 clustered. Involucres narrow: bracts few, appressed, the outer ones thick and woolly. 

 Receptacle flat. Kay-flowers 3 or 4, fruit-producing: ligules yellow or orange, broad, 

 lobed. Disk-flowers, perfect, fruit-producing. Stigmas of the disk with somewhat 

 capitate appendages. Achenes narrow, terete or faintly striate. Pappus of 4-6 

 hyaline narrow scales. Differs from Clappia in the flat leaf-blades and from the 

 following genera in the persistent papery ligules. 



1. Psilostrophe villosa Eydb. Plants 1-6 dm. tall, white-woolly: cauline- 

 leaves 2-6 cm. long; blades entire, toothed or pinnately lobed: heads in corymbose 

 clusters: involucres 6-7 mm. high: bracts oblong to lanceolate: ligules yellow, 3-4 

 mm. long and fully as wide, mostly 3-lobed: achenes somewhat fusiform, about 2.5 

 mm. long. 



In dry soil, Kansas to Texas and Arizona. Spring to fall. 



Page 1287, after Polypteris Texana, insert: 



3a. Polypteris rdaea (Bush) Small. Stems 4-7 dm. tall, loosely strigillose: 

 leaf-blades narrowly linear-lanceolate to linear, 2.5 cm. long, rough, 1-ribbed, mostly 

 short-petioled : peduncles finely glandular: heads several-flowered: involucres broadly 

 turbinate; bracts oblong to linear, 5-7 mm. long, the inner at least half purple: 

 corollas about 6 mm. long: achenes 4 mm. long or less. [Othake rosea Bush.]. 

 Differs from P. Texana in the stout corolla-tube which is shorter than the lobes, the 

 small involucre and the small achenes. 



In sandy soil, eastern Texas and Oklahoma. Summer and fall. 



