1512 CONTEIBUTIONS FROM THE NATIONAL HEEBAEIUM 



heads 4 to 5 mm. high, in small dense cjniose glomerules, short-pedicellate ; 

 phyllaries obovate, the lower ochroleucous, the upper white; pistillate flowers 16, 

 hermaphrodite 18. 



2. Gnaphaliura rhodanthum Schultz Bip. in Seem. Bot. Voy. Herald 310. 



1856. 



Hidalgo to Oaxaca and Chiapas; type from Jitotole, Chiapas. Guatemala. 



Suffrutescent, 40 cm. high or less, densely leafy; stem cinereous or canescent- 

 tomentose; leaves linear or narrowly linear-lanceolate, the larger 3 to 7.5 cm. 

 long, 1.5 to 5 mm. wide, usually greenish above, densely tomentose beneath, the 

 older deflexed, marcescent; heads in small rounded cymose panicles; outer phyl- 

 laries oblong or linear-oblong, the inner linear, obtuse, with white or reddish 

 purple tips. 



3. Gnaphalium. seemannii Schultz Bip. in Seem. Bot. Voy. Herald 309. 1856. 

 Chionolaena corymbosa Hemsl. Diagn. PI. Mex. 32. 1879. 



Known only from the type locality. Sierra Madre of northern Mexico. 



Suffrutescent, about 17 cm. high, the stem closely and when young canescently 

 lanate-tomentose; leaves elliptic-linear or linear-oblanceolate, 1.8 to 4.5 cm. long 

 (including the petioliform base), 3 to 5 mm. wide, quickly glabrate and green 

 above, densely and canescently silkj'-pannose-tomentose beneath; heads cymose- 

 panicled, short-pediceled, about 8 mm. high; outer phyllaries suborbicular-ovate, 

 with a brown spot, the inner oblong-linear, rounded, whitish, with a brownish 

 spot near middle. 



4. Gnaphalium concinnum A. Gray, Proc. Amer. Acad. 15: 34. 1879. 



San Luis Potosi; type from highest mountains southeast of City of San Luis 

 Potosf. 



Suffrutescent, 20 to 35 cm. high, several-stemmed; stems densely and subcanes- 

 cently tomentose, very leaf}-; leaves obovate, 10 to 20 mm. long, 3 to 8 mm. 

 wide, above arachnoid-tomentose, glabrescent, densely griseous- or ochroleucous- 

 lanate beneath; heads in a nearly leafless cymose panicle, about 6 mm. high; 

 phyllaries pink-purple below, the white tips of the middle and outer ones reflexed 

 at maturity. 



5. Gnaphalium sartorii (Klatt) Schultz Bip. 

 Chionolaena sartorii Klatt, Leopoldina 23: 89. 1887. 



Gnaphalium sartorii Schultz Bip.; Klatt, Leopoldina 23: 89. 1887, as synonym. 



Known only from the type locality, Sempoaltepec, Mexico. 



Low, suffruticose, gra3'-toinentose; leaves linear, 9 to 18 mm. long, 1 mm. 

 wide, arachnoid above, griseous-tomentose beneath; heads pedicellate, ternate, 

 campanulate; phjdlaries fuscescent, lanceolate. (Description mostly compiled.) 



6. Gnaphalium lavandulaceum DC. Prodr. 5: 227. 1837. 

 Elychrysuvi lavandulaefolium H. B. K. Nov. Gen. & Sp. 4: 86. 1820. 



■ Chionolaena lavandulaceum Benth. & Hook.; Hemsl. Biol. Centr. Amer. Bot. 2: 



134. 1881. 

 Gnaphalium lavandxdaejolium Blake, Contr. Gray Herb. n. ser. 52: 21. 1917. 



Not G. lavandulaefolium Willd. 1804. 

 Highest mountains of Mexico and Veracruz; type from Mount Nauhcampa- 

 teptle, near Perote, Mexico. 



Suffrutescent, 30 cm. long or less, griseous- or cinereous-tomentose; leaves 

 very crowded, linear-spatulate to linear, obtuse; heads campanulate, 1 to 3 at 

 tips of branchlets, 7 to 9 mm. long; phyllaries fuscescent at base, with whitish 

 tips. 



34. PELUCHA S. Wats. Proc. Amer. Acad. 24: 55. 1889. 

 1. Pelucha trifida S. Wats. Proc. Amer. Acad. 24: 55. 1889. 



Central Baja California and islands in the Gulf of California; type from San 

 Pedro Martir Island, Gulf of California. 



