TWO NEW SPECIES OF ABRONIA 



By ANTON HEIMERL 

 University of Vienna, Austria 



ABRONIA BIGELOVII Heimerl, sp. nov. 



Planta perennis, eodem modo ut in A. nana Wats, et in speciebus 

 affinibus caule lignoso, abbreviate, in apice foliorum fasciculum 

 densum et capitulnm longipeduncnlatum gerente spectabilis. Folia 

 omnia basilaria, in forma distinctissima, lineari-oblonga ad linearia, 

 apice obtusata ad obtusissima, in petiolum cuneatim longe angustata, 

 cum petiolo usque ad 34 mm. Ig., 3.5-4 mm. It., petiole laminam 

 aequante ad evidenter superante, saepius in laminam sensim abeunte, 

 latiusculo, albido, paulum hirtulo, lamina concolore, crassiuscula, 

 griseo-viridia, integra, primum brevissime puberula, eglandulosa, 

 denique glabra, nervo mediano imprimis basin versus distincto, nervis 

 lateralibus indistinctis. Capitulorum pedunculus 5-7 cm. Ig., gracilis, 

 erectiusculus, in statu exsiccato angulatus, pilis eglandulosis, valde 

 brevibus, modice dense, superne densius pulverulento-puberulus. 

 Capitula (deflorata solum suppetunt) submultiflora, bracteis illis 

 A. fragrantis Nutt. similia, membranacea, late ovata ad ovato- 

 elliptica, breviter acuminata, acutiuscula, ad 8 mm. Ig. et 5 mm. It., 

 tenuiter pulverulento-puberula. Perianthia dense puberula. Antlio- 

 carpia, ut videtur, illis A. turbinatac Wats, similia. 



Legit Dr. J, M. Bigelow "near Galisteo" in expeditione anno 1853 

 facta (Lieut. A. W. Whipple's Exploration for a Railway Route 

 from the Mississippi River to the Pacific Ocean, near the 35th 

 parallel of latitude in 1853-54). 



ABRONIA COVILLEI Heimerl, sp. nov. 



Planta perennis, pluriceps, caespites densos, multifoliatos, ad 10-15 

 cm. It. formans. Radix valida, basi ad i cm. crassa. Caules 

 complures e collo orientes, lignosi, f. intricati, procumbentes, valde 

 abbreviati, ramosi, ad 3-4 cm. Ig., eodem modo ut in A. nana Wats, 

 foliorum fascicula et in apice capitula floralia pedunculata gerentes. 

 Folia (spurie) radicalia, parva, lamina breviter ovata, in basi sub- 

 truncata v. obtusata v. levissime cordata, 7-13 mm. Ig., 5-9 mm. It., 



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