27 



I. Spirodela, Schleid., Linn. Xlll, pg. 391, apud Hegelm., 



Die Lemn. ^ pg. 1471 



1. S|)ii'Oflcla iiolyrrliixH, Schleid., l c, pg. 392; Hegelm., 

 /. c, pg. 151! Parlat., /. c. IH, pg. 673! Hss., /. c, pg. 30! Lemna po- 

 lyrrhizn, L., Sp. PI, pg. 1377! Gren. et Godr., /. c, pg. 327! Rchb., 

 /. c. Vn, fig. 17! 



Frondibus magnis, obovalibus v. snborbicnlaribus, subtus rufescenlibus. 



Hah. in aqiiis stagnaiitibus v. lente Iluentibus. — 0. Fl. Mart. ad Sept. 

 [v. s.). 



Beira Ultoral : Coimbra, valia de Coselhas (Moller!); Montemór-o- Velho 

 (M. Ferreira!). — Centro Udorah Yilla Nova (Welw.!). — Alemtejo lillo- 

 ral: Apostiça (Welw., n.° 1123!); lagoa d'Albiifeira (Welw.!).— fíaixas 

 do Sorraia: margens do Sorraia, prox. a Coruche (Daveau!). 



II. Lemna, L. {emend.), Gen. PI., n.° 1038! 



IFrons (obovata) superne convexiuseula subtus valde convexa, spongioso-inflata, 

 crassa, majuscula; fructus 2-7-spermus L. gibba, L. 

 Frons utrinque plana ; fructus monospermus 2 



[Frondes crassae, obovales v. oblongo-obovatae (non stipitatae), 3-4 adnatae, par- 



\ vulae. Planta natans L. minor, L. 



2 

 /Frondes membranaceae, oblongo-lanceolatae demum longe stipitatae, 3 cruciatini 

 ( conjugatae. Planta primuni submersa, ílorendi tenipore natans. L. trisulca, L. 



Sect. I. Telmatophace (Schleid.), Hegeltii., /. c, pg. 145! 



2. L<emun gi^í'»»? L., Sp. PI, pg. 1377! Brot., /. c. I, pg. 26! 



Gren. et Godr., /. c, pg. 327! Rchb., /. c, fig. 16! Hegelm., l. c, pg. 

 145 ! Bss., /. c, pg. 30! Telmatophace gibba, Schleid., apud Wk. et Lge., 

 /. c, pg. 26! Parlat., /. c, pg. 672! 



1868. 



1 Fried. Hegelmaier — Die Lemnaceen eine monographische nntersuchimg. — Leipzig, 



