40 . A. A. Eaton. 



5. Arabis albida Stev. var. flaviflora (Bge.) Trautv. f. glabra Busch, 

 1. e„ p, 19. 



Caule et foliis glabrescentibus. 



6. Arabis albida Stev. var. dolichothrix Busch, 1, c, p. 19. 

 Caulibus et petiolis foliorum inferiorum longe patentim-hirsutis; 



racemo hirsute 2J.. v. s. in h. Tm. 



7. Arabis Billardieri DC. (restituenda!). (Sectio Euarabis C. A. Meyer). 



Descriptio emendata Busch, 1. c, p. 20. 



Syn.: A. albida %. Billardieri Boiss. PI. Or.. I (1867), 175. 



Icon.: Delessert, tab. 24! 



Exsicc: Ch. Haussknecht. It. Syriaco-Armeniacum (1865). Syria 

 bor., Ssoffdagh! (teste Boiss.). 



Cano-tomentosa; caulibus 25 — 30 cm altis, tenuibus, infra pubes- 

 centibus, supra glabris; foliis radicalibus albo-tomentosis, 2- 4 cm longis, 

 8 — 15 mm latis, obovatis, obtusissimis, in petiolum attenuatis, caulinis 

 basi auriculatis, sessilibus, 3 — 472 cm longis, 1 — .2*/j cm latis, tenerioribus, 

 minus tomentosis. omnibus utrinque 3 — 4-dentatis. Racemo glabrescente. 

 Siliquis anguste-linearibus, glaberrimis, 3—5 cm longis, 1 mm latis, pedun- 

 culo suo 3— 5-plo longioribus, stylo l /a~ 3 /4 mm longo apiculatis; stig- 

 mate parvo, capitato. Seminibus oblongo-subrectangulis, 1 mm longis, 

 0.6 — 0.7 mm latis, immarginatis. Of., v. s. in h. P. 



D. C, Syst., II (1821), 218. 



Hab. in prov. Kars (Armenia rossica). 



Asia Minor (Lycia! Amasia!), Syria bor.! Libanon et Antilibanon. 



Novitas pro Flora Caucasica. Affinis A. albidae, sed indumento, sili- 

 quis angustioribus et longioribus et seminum forma aliena et magnitudine 

 minore manifestissime distincta. In diagnosi eel. Boissieri (1. c.) folia 

 basi utrinque 1 — 2-dentata nominantur, sed haud recte; in speciminibus 

 Ch. Haussknechtii, a eel. Boissiero visis, et in omnibus aliis folia 

 utrinque regulariter, nee basi tantum, 3-4-dentata! 



Xlll. A. A. Eaton, Ep /pact is, Serap/as atque Serapiastrum. 

 Commutationes nomenclatoriae. 



(Ex: Proc. Biol. Soc. Washington, XXI [1908J, pp, 63—68.) 



Der Verfasser halt auf Grund seiner Studien nach dem Wiener Codex 

 folgende nomenklatorischen Anderungen fiir notwendig: 



.Epipactis (Haller) Bohmer. 



The name Epipactis appears to have been first used since 1753 by 



Bohmer in the third edition of Ludwig's Definitiones Generum Plantarum. 



Although he makes no binomial combination, his genus is properly made 



and he gives several references to the plant designated by Linnaeus as- 



