(D. ) Bitter, Bitter, (D. ), and Bitter, ?Repert. Spec. Nov. Regni Veg., Beih. 16: 98. 1923.?, 1923.

Bitter and Bitter, (D. ), ?Bot. Jahrb. Syst. 54: 506. 1917.?, 1917.

(D. ) Bitter, Dammer,, Bitter,, and Bitter, ?Bot. Jahrb. Syst. 54: 467. 1917.?, 1917.

Bitter, Bitter,, and Bitter, (D. ), ?Bot. Jahrb. Syst. 54: 461. 1917.?, 1917.

Bitter and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 114. 1923.?, 1923.

Bitter and Bitter, (D. ), ?Bot. Jahrb. Syst. 57: 279. 1921.?, 1921.

(D. ) Bitter and Bitter, ?Repert. Spec. Nov. Regni Veg., Beih. 16: 28. 1923.?, 1923.

Bitter, Bitter,, Bitter, (D. ), and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 25. 1923.?, 1923.

Bitter and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 24. 1923.?, 1923.

(D. ) Bitter and Bitter, ?Repert. Spec. Nov. Regni Veg., Beih. 16: 26. 1923.?, 1923.

Bitter and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 256. 1923.?, 1923.

Bitter and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 192. 1923.?, 1923.

Bitter, Bitter, (K. ), and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 66. 1923.?, 1923.

Bitter, Bitter,, and Bitter, (D. ), ?Repert. Spec. Nov. Regni Veg., Beih. 16: 89. 1923.?, 1923.

(D. ) Bitter and Bitter, ?Repert. Spec. Nov. Regni Veg., Beih. 16: 239. 1923.?, 1923.

(D. ) Bitter, Bitter,, Bitter,, and Bitter, ?Bot. Jahrb. Syst. 57: 17. 1920.?, 1920.