376 
Becker, Violenstudien. 
cinae distinctae; sepala lanceolata; rostellum styli sursum spec- 
tans, ad curvaturam distincte pilosum. 
2. Fol. < V. silv ., distincte pubesc., subacuminata, profundius 
cordata; stip. longe remoteque fimbriatae; flos < V. Riv.; calcar 
abbreviatum, subacutum; append. calyc. distinctae; rostellum 
styli porrectum, ad curvat. distincte pilosum, ante acumen in- 
fractum quam in V. silv. 
3. Folia distincte acuminata, in forma coloreque ut in 
F. silv., stip. subintegrae; flos < V. Riv., sepala late lanceolata; 
rostellum styli sursum spectans, subpilosum; — calcar deforma- 
tum, brevissimum; petala subeadem magnitudme et forma, su- 
periora lateraliaque barbata (f. deformata). 
4. V. Rivin. > x silv. Fol. < V. Riv., lata, profunde cordata, 
subacuminata; stip. fimbriatae ut in V. silv.; flos intermed.; sepala 
angusta; append. calyc. subrudimentares; calcar breve at gracile 
et tenue, subviolaceum; rostellum styli porrectum, subglabrum. 
5. V. Rivin. X < silv. Folia < V. silv., at ad basin plane cordata; 
stip. longe fimbriatae; flos < V. silv., sepala angusta appendicibus 
rudimentär.; calcar breve, violaceum, gracile; petala angusta, 
violacea; rostellum styli porrectum, abbreviatum, ad curvaturam 
pilosum; non omnino sterilis (unicus fructus bene evolutus et 
unicus fructus abortivus, curvatus). Verisimiliter V. [Riv. x silv.) 
X silv. Vegetatio luxuriosa. 
6. Fol. intermedia, ad basin plane cordata, ad apicem obtusa, 
in longitud. < V. silv.; flos < V. Riv., violaceus; calcar crassum; 
append. calyc. rudiment. patulae; rostellum styli ut in V. silv. 
7. Fol. interm.; stip. fimbriatae; flos V. silv. , calcar abbre— 
viatum, gracile, violaceum; rostellum ad curvaturam subpilosum. 
8. Fol. < V. silv., ad basin subplane cordata; stipulae fimbriatae; 
flos < V. Riv., at obscurius coloratus; calcar abbreviatum, gracile, 
violaceum; appendices calycin. rudimentäres; sepala subangusta; 
rostellum styli subabbreviatum, sursum spectans, subpilosum. 
S y n.: V. Riviniana x silvestris W. Bckr. 1. c.; Neum. 
Sver. Fl. p. 273; W. Bckr. Viol. Schweiz; Beck 
Fl. N.-Öst. p. 522 p. p. (excl. 3 semi-Rivin. et 
4 ^pseudo silvatica). 
V. silvestris x Riviniana Hai. Fl. N.-Öst. p. 81. 
V. silvatica x Riviniana Bethke 1. c. 
V. Riviniana X silvatica Hsskn. in Verh. bot. Ver. 
(1871) p. 114. 
V. canina (silvestris x Riviniana) Borb. in Koch- 
Wohlf. Syn. I. p. 199. 
V. intermedia Rchb. 1. c. 
V. dubia Wiesb. Öst. bot. Z. (1886) p. 191 sine descr. 
Exs.: N. W. M. 14 (f. ad V. Riv. acced.), 15 (f. ad V. silv. 
acced.); W. Bckr. Viol. exs. 166. 
Standorte nach meinem Herbar: 
Schweden: Gotland (Visby), Skäne (Bökebergslätt); 
Frösön (Jemtland), Hammarby (Söderml.), N.-Räda (Vermland). 
