Pleurothallis Dayana /( Reichb.f.) L.O. Williams 
comb, nov. 
Restrepia Dayana Reichenbach filius in Gard. Chron. 
n.s. 4 (1875) 257. 
Pleurothallis filamentosa (4. & S.) L.O. Wil- 
liams comb. nov. 
Restrepia filamentosa Ames & Schweinfurth in Sched. 
Orch. 8 (1925) 19, fig. 3. 
Pleurothallis subserrata (Schltr. ) L.O. Williams 
comb. nov. 
Restrepia subserrata Schlechter in Fedde Repert. 
Beihefte 19 (1923) 291. 
Pleurothallis xanthophthalma ( Reichb.f.) L. 
O. Williams comb. nov. 
Restrepia Lansbergu ‘*Reichb.f.’’ sensu Hooker in 
Bot. Mag. 87 (1861) t. 5257. 
Restrepia wanthophthalma Reichenbach  filius in 
Hamb. Gartenzeit. 21 (1865) 800. 
2. NAGELIELLA, A NEW NAME FOR THE ORCHIDA- 
cEOUS GENUS Harrwecia Lindley. 
NAGELIELLA L.O. Williams nom. nov. 
Hartwegia Lindley in Bot. Reg. 23 (1837) sub t. 
1970, non Nees (1831). 
Nageliella purpurea ( Lindl.) L.O. Williams comb. 
nov. 
Hartwegia purpurea Lindley in Bot. Reg. 28 (1837) 
sub t. 1970—Reichenbach filius in Saunders Refug. 
Bot. 2 (1870) t. 94. 
Lindley named this monotypic orchid genus for The- 
odore Hartweg who, somewhat more than a century ago, 
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