﻿WESTERN PLANT STUDIES. Ill 



Aven Nelson and J. Francis Macbride 

 Polypodium vulgare L. var. hesperium (Maxon), n. comb — 

 P. hesperium Maxon, Proc. Biol. Soc. Wash. 13:200. 1900. — The 

 intermountain form with shorter, broader, and usually very 

 obtuse pinnae. 



Isoetes o c cedent alis Hend. var. Piperi (A. A. Eat.), n. comb. 

 —I. Piperi A. A. Eat. Fern Bull. 13 : 51. 1905; J. Howellii Engelm. 

 var. Piperi Clute, Fern Allies 258. 1905. — The velum broader and 

 the spores larger with obtuse tubercles. 



Muhlenbergia setiglumis (Wats.), n. comb. — M. sylvatica 

 Torr. var. setiglumis Wats. Bot. King Exped. 378. 1871.— Very 

 closely allied to the eastern M. sylvatica Torr., but each confined 

 to its own range. 



Streptopus streptopoides (Ledeb.), n. comb. — Smilacina strepto- 

 poides Ledeb. Fl. Ross. 4:128. 1852; Kruhsea Tilingiana Regel 

 Nom. Mem. Soc. Nat. Mosc. 11:122. 1859; S. brevipes Baker, 

 Jour. Linn. Soc. 14:592. 1875. — This form of species name is 

 always to be regarded as unfortunate, but at the present time, at 

 least, it must be used in cases like this. 



Majanthemum dilatatum (Wood), n. comb. — Unifolium bifo- 

 lium DC. var. dilatatum Wood, Proc. Phil. Acad. 154. 1868.— 

 The genus Majanthemum is one of the nomina conservanda of the 

 international rules. The plant is well worthy of specific rank. 



Arenaria macra, n. n.— A. tenella Nutt. T. and G. Fl. 11:79. 

 1838, not Kit. in Schuet. Oestr. Fl. ed. II. 1:662. 1814, a valid 

 species of Austria. 



Spergularia bracteata (Robinson), n. comb. — S. salsuginea 

 Fenzl. var. bracteata Robinson, Syn. Fl. 1 : 251. 1897. — The bractlike 

 upper leaves are very different in aspect from the apparently entirely 

 Siberian S. salsuginea. 



Delphinium Menziesii DC. var. fulvum, n. var. — Pubes- 

 cence, especially above, yellowish-villous and slightly viscid. — 

 Eastern Oregon and adjacent Idaho. 



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