^54 V. de Borbäs: Menthae geueris species novae etc. 



nervus Intermedius parum axin versus incurvus, extrorsum semi- 

 pinnati-ramosus: florum $ (minutorum) glomeruli in quovis nodo gemini, 

 in folii et normalis et abortivi axilla solitarii, sessiles, parvi, densi; 

 perianthii foliola 5 dorso obsolete earinata, pilis raris patentibus cine- 

 reis hirsuta. 



Caulis 2 — 3 mm crassus, internodiis usque 35 mm longis; stipulae 

 ca. 15 mm longae, basi vix 2 mm latae; petiolus ca. 8 mm longus; 

 lamina usque ultra 11 cm longa, ca. 45 mm lata, acumine 15 — 20 mm 

 longo: glomeruli $ ca. 5 mm diametro. 



Celebes: Minahassa, fruchtbarer vulkanischer Sand im Urwald bei 

 Bivouak Totok nahe bei Ratatotok 200 m über See (Koorders 21. März 

 1805 no. 19407/?. Herb. Bog. — „Kraut. Blüten schmutzig weiss. Inland. 

 Name: Tepu"). 



XIII. V. de Borbas, Menthae generis species novae ad sectionem 



„ Nudicipitum" pertinentes. 

 (Aus: Ung. Bot. Bl. IV [1905]. pp. 48—54.) 



1. Mentha calliopsis Borbäs, 1. c. p. 51. 



Laete viridis, sparse pilosa, nitens, folia ovata, basi rotundata, bre- 

 viter in petiolum angustata. inaequaliter majoribus minoribusque dentibus 

 serrata. M. lamprosomae (p. 53) afflnis, dentibus foliorum apertis, verti- 

 cillastris spicato-confluentibus, inferne paucis remotis praecipue differt, 

 dum in M. lantprosoma verticillastra plura a pseudospica remota sint 

 ideoque M. calliopsis minus ac M. lamprosoma. a M. aquatica diversa est. 



Stiria orientalis: In fossis ad Ebersdorf prope Söchau (Sabransky). 



2. X Mentha amphioxya Borbas, 1. c. p. 51 (M. aquatica X parietari folia). 

 Foliis angustioribus, magis elongatis, lanceolatis, basi apiceque con- 



spicue acutatis. Ulis M. parietariaefoliae similibus, medio serratis, utrinque 

 pilosis. Inflorescentia verticillata capitato-terminata. Pedicelli calycesque 

 hirsutissimi, pilis elongatis ut in Campano calycibus, patentibus reflexis- 

 •que, at calycis dentes Tubocalycium acuminati. 



Silesia: Berthelsdorf prope Reichenbach (Schumann). 



Bohemia orientalis: Teleci ad Palicka (B. Fleischer). 



3. X Mentha perarguta Borbäs, 1. c. p. 51 (M. aquatica X ballotae folia). 

 Subalbicanti-villosa; foliis ovatis, basi apiceque parum angustatis, 



argute serratis. utrinque albicanti-villosis: inflorescentia verticillata, in 

 ^ipice caulis breviter spicata; pedicelli atque calyces breviter hirti. 



In humidis ad Bohuslavice cott. Trencsöny (Holuby). 



In Silesia loc. certiore non indicata (Fiek). 



(Schhi ss folgt.) 



