Rydb., ?Bull. Torrey Bot. Club 51: 149. 1924.?, 1924.

Rydb., ?Bull. Torrey Bot. Club 51: 150. 1924.?, 1924.

Rydb., ?Bull. Torrey Bot. Club. 51: 148. 1924.?, 1924.

Rydb. and Rydb., ?Bull. Torrey Bot. Club 51: 175. 1924.?, 1924.

Rydb., ?Bull. Torrey Bot. Club 51: 153. 1924.?, 1924.

Rydb., ?Bull. Torrey Bot. Club 51: 174. 1924.?, 1924.

Rydb., ?Bull. Torrey Bot. Club 51: 154. 1924.?, 1924.

(B. ) Rydb. and Rydb., ?Bull. Torrey Bot. Club 51: 171. 1924.?, 1924.

Rydb., Rydb., (B. ), and Rydb., ?Bull. Torrey Bot. Club 51: 169. 1924.?, 1924.