24 Günther Beck-Mannagetta. — Orobanchaceae. 



II. (1841) 170. — Epifegus Steudel, Nomenclat. ed. 2. I. (1840) 559. — Epiphejus 

 Walp. Repert. III. (1845) 457 et Ann. bot. III. (1853) 206. — Leptaminium Steudel, 

 Nomencl. ed. 2. II. (1841) 29. 



Flores polygami, dimorphi; inferiores cleistanthi, feminei fertilesque, superiores 

 perfecti, hermaphroditi, saepe (nee semper) steriles. Flos herrnaphroditus chas- 

 mogamus: Calyx bibracteolatus, scutellato-campanulatus, aequaliter 5-dentatus vel 

 dente postico majore munitus; corolla hypogyna, tubo subeylindraeeo, compresso, levifer 

 ineurvo, ad apicem parum ampliato limboque breviter bilabiato rnunita; corollae labium 

 superum erecto-subfornicatum, integrum vel emarginatum; inferius trilobum, lobis aequa- 

 libus triangularibus praeditum; stamina 4, corollae tubo inserta, inclusa vel subexserta, 

 subaequalia; antherae biloculares, loculis basi diseretis cartilagineo-mucronatis praeditae; 

 germen disco semiannulari antico neetarifero einetum, compressum, uniloculare, placentis 4 

 in media parte valvarum per paria approximatis, lamellosis latis munitum; ovula nume- 

 rosa, in funiculis longiusculis anatropa, saepe abortiva; Stylus simplex; stigma capitatum, 

 emarginatum. Flos fertilis cleistogamus, femineus: calyx parvus; corolla brevis, 

 inaperta, calyptriformis, obsolete 4- dentata, mox in basi soluta, ovarium sub grossi- 

 ficatione calyptratim degens; germen ut in floribus hermaphroditis ; stamina rudimen- 

 taria; Stylus brevis; stigma emarginatum; Capsula calyce duplo longior, ovata, pro- 

 funde bivalvis, cum valvis ad fissuram versus incrassatis et in media parte placentiferis ; 

 semina numerosa, oblonga; testa coriacea; embryo in basi albuminis carnosi prope 

 umbilicum situm, minimum, subglobosum. 



Nota. See. Alph. De Gandolle (in Prodr. XI, 3 nota) Rafinesque in Am. monthly mag. 

 (Jan. 184 9 nee 4 84 8) Domen Epifagum barbarum denuntiat et ait (p. 194) >se a longo tempore 

 nomen Leptamnium proposuisse in Monographia Orobanchacearum ; sed hoc opus mihi (= DG.) 

 et cl. Asa Gray (notice bot. Wright. of Rafin. in Amer. journ. sc. V. 40) ignotum. Rafinesque 

 Med. Fl. 2, p. 237 Leptamnium virginianum Raf. 4 84 citat, sine designatione operis«. 



1. E. virginianus (L.) Darlington, Florula cestrica (1825) 72; Hook. Fl. bor.- 

 amer. II. 93; Endlicher, Iconogr., t. 80 (germen et semina incorreeta): Reuter in DC. 

 Prodr. X. 4. — Orobanche virginiana L. Spec. pl. (1753) 633. — Epifagus virginianus 

 Barton, Comp. fl. Philad. II. (1818) 50. — Epifagus americana Nutt. Gen. Amer. II. 

 (1818) 60. — Epiphejus americanus Walpers, Rep. III. (1844 — 1845) 457. — My- 

 lanche virginiana Wallroth, Orob. gen. diask. (1825) 75. — Leptamnium virginianum 

 Raf. in Am. monthl. mag. (1819) sec. A.Gray, Synopt. fl. North Am. II. 1. (1878) 314 

 et ed. 2. (1886) 314 sub synonymis Epiphagi; Britt. and Brown, 111. fl. North. Unit. 

 Stat. III. (1898) 197. — Orob. minor virginiana lignosior Morison, Plant, hist. Oxon. 

 sect. 12 (1680) t. 16, fig. 9. — Caulis tenuis, rigidus, erectus, in ima basi incrassatus 

 et radiculas copiosas emittens, e basi simpliciter, bis raro ter ramosus cum ramis elonga- 

 tis stricto-erectis infra esquamatis, superne copiose floriferis, squamis brevibus carnosis 

 remotis vestitus, interdum flexuosus, ochroleucus, rubro-fuscescens vel purpurascens, 

 — 60 cm altus. Flores laxe racemoso-spicati, inferiores cleistogami vix 5 mm longi, 

 fruetiferi, corollis brevissimis muniti, superiores hermaphroditi, chasmogami, 8 — 10 mm 

 longi, non vel raro fruetificantes, corollis semipollicaribus, angustis, sursum sensim am- 

 pliatis, albidis vel plus minus purpurascentibus praediti; intermediis interdum interpositis. 

 Bracteae squamaeformes, pedicellos longitudine aequantes vel paulo superantes; brac- 

 teolae calyci adnatae minimae lanceolatae, calycis tubo breviores. Corolla florum chasmog. 

 superiorum alba vel purpurascens, limbo subbilabiato praedita; labium superum emar- 

 ginatum, inferum trilobum; laciniae acutae, uninerviae, breviter pilosae. Stamina in 

 tertio infimo corollae inserta, inaequilonga; filamenta in basi cum corollae parte pro- 

 pinqua barbato-pilosa, supra pilis perpaucis articulatis obsita vel glabra; antherae sagitti- 

 formes, acutae, pilis articulatis copiose teetae, thecis mucronato-acuminatis divergentibus 

 instruetae; pollen 19 — 22 ^u. Germen tumore basali neetarifero praeditum; Stylus glaber; 

 stigma subpeltato-globosum, in media parte coneavatum. Capsula ovalis compressa, 

 conspicue saepe bis calyce longior; semina numerosa ellipsoidea, longa; cellulae testae 

 elongatae, incrassatae, eporosae. — Fig. 5-4 — K. 



