Najadaceae. — Orcliidafeae. 151 



formibus, integris, oppositis vel ternis; floribus monoicis, axillaribus, 

 masculis et femineis solitariis vel in una eademque axilla commixtis; 

 carpellis 2 — 6, in umbellulam brcviter pedunculatam congestis, oblique- 

 oblongis vel semilunatis, laevibus vel margine dorsali, intenhma etiam 

 ventrali crenato-dentatis. — Species quoad longitudinem pedunculi floris 

 masculi et pedicellorum carpellorum, porro quoad carpella plus minus 

 longe stylata, margine integra vel dentata, formas plures intermediis 

 conjunctas praebet. 



a. typica. — Z. dentata Willd, sp. IV. p, 181. — Carpella 

 sessilia vel brevissime pedicellata, stylo duplo longiora, margine integra 

 vel dentata, stigma denticulatum. — Exsicc. : Heldr. pl. fl. hellen. 

 a. 1879. 



(i. pedicellata Wahlenb. et Ros. nov. act. Ups. VIII. p. 227; 

 Bois, fl. or. V. p. 15. — Z. pedicellata Fr. nov, mant. I. p. 18 ; 

 Haussk, symb, p. 23. — Carpella pedicello 1 — 2 mm. longo suffuha, 

 stylo aequilonga vel parum longiora, margine saepissime dentata, stigma 

 obscure denticulatum. — Exsicc. : Baen, herb. europ. n, 9371. 



In aqua dulci et sahna, in limosis, inundatis, Thessaha: pr. 

 Karditza (Haussk.), Bubuhtra pr. Volo (Heldr.); Attica: ad Phaleron 

 (Orph.), Laurion (Haussk.); Argohs: pr. NaupHa, Tirynthum (Haussk.); 

 Cephalonia: pr. Akoh (Heklr.); Corcyra: pr. Kastrades (Baen.), Potamo, 

 Govino (Mazz.). — Mart. Sept. %. 



CXX. Ordo. Najadaeeae Lindl. veg. kingd. p. 143. 



1. Najas L, gen, n, 1096, 



1, N. minor All, fh ped. II, p, 221, — Caulinia fragilis Willd. 

 in act. acad. berol. 1798 p. 88; Haussk. symb, p. 23. — Icon: Nees 

 gen, X, t, 1, — Exsicc: Haussk. it. gr, a, 1885. 



Submersa; cauhbus ramosis; fohis oppositis vel ternis, anguste 

 hnearibus, recurvatis, remote dentato-spinulosis, vaginis superne cihato- 

 denticulatis ; floribus monoicis, axillaribus, sohtariis vel aggregatis; in- 

 vokicro floris mascuH duphci, externo tubuloso-ventricoso, apice denti- 

 culato; filamento brevi, anthera uniloculari; fructu anguste-cyhndrico. 



In stagnis ad fL Peneios pr. Kutzochero inter Trikala et Larissa 

 Thessahae in societate Ceratophylli suhmersi (Haussk.). — Aug. 

 Sept. O, 



CXXl. Ordo. Orehidaeeae L. pMl. bot. 1751 p. 27. 



Dispositio tribuum generumque. 



1, Tribus. Cypripedieac Lindl. orch, p, 525. — Antherae binae laterales fer- 

 tiles, centralis sterilis petaloidea. 



1. Cypripedium L. 



