Broadhurst: Struthiopteris in North America 271 



pinnae are sometimes distant. They are like S. polypodioides 

 in the proportionate length of the lamina and in the more falcate 

 pinnae. The other specimens from Grenada fall unquestionably 

 into .S. polypodioides. 



We find similar intermediate forms in passing northwest from 

 Guadeloupe through Porto Rico. One sheet from Porto Rico 

 (Hioram 275, Mt. Torresilla, U. S. National Herbarium no. 657235) 

 has the texture and the base of S. Plumieri; the other characters 

 are all those of 5. polypodioides. The other (5) specimens from 

 Porto Rico are all of the polypodioides type except that none of 

 them has black in the rhizome scales. This black median line is 

 also lacking in 4 of the 28 Jamaican sheets of S. polypodioides, and 

 occasionally so in specimens from Cuba and Mexico.* 



Fee's description and picture of Lomaria Plumieri can not be 

 separated from L. Plumieri Desv., and Fee himself says that his 

 figure is given to "complete" Plunder's figure. Jenman never- 

 theless confused Plumieri with exaltata, thus (1) making his 

 description of the habit of Plumieri untrue, and (2) leading to 

 the establishment of Feei for what he mistakenly considered Fee's 

 Plumieri, the raised-veined form of polypodioides. Christensen 

 gives Lomaria divergens Kze. and L. mucronata Fee both as 

 synonyms for Plumieri. Neither is synonymous, for L. divergens 

 has pinnae with wedge-shaped bases, and L. mucronata is much 

 like exaltata in the cutting and the proportions of the lamina and 

 the pinnae. 

 7. S. polypodioides (Sw.) Trev. Atti 1st. Ven. III. 14: 57* • 



1869. 



Osmunda polypodioides Sw. Prod. 127. 1788. 



Blechnum onocleoides Sw. Jour. Bot. Schrad. 1800 2 : 75. 1801. 



Onoclea polypodioides Sw. Fl. Ind. Occ. 3: 1585. 1806. 



Lomaria polypodioides Desv. Prod. 288. 1827. 



Lomaria onocleoides Spreng. Syst. 4: 62. 1827. 



Lomaria fragilis Liebm. Vid. Selsk. Skr. V. 1: 80. 1849. 



Spicanta onocleoides Presl, Epim. Bot. 114. 1851. 



Lomaria decrescens Fee, Gen. Fil. 68. 1852; Mem. Foug. 7: 



24. pi. 9,f- I- i 8 57- 

 Lomaria mexicana Fee, Mem. Foug. 8: 70. 1857. 



* See also the discussion under 5. polypodioides. 



