25 77 



17. St. Michaelis (Bak.) C. Chr. 1. c. 300, fig. 9. 

 Area: Ecuador-Colombia. 

 Additional synonyms: Polypodium syluicolum Bak. Journ. Bot. ISSl: 205. 



Dryopteris syluicola C. Chr. Ind. 297, 1905. 

 The type-specimen of P. syluicolum Bak. from Colombia, Prov. Antioquia, 

 Kalbrey£r nr. 1807 (Kew!) is nearly exactly identical with the type from Ecuador. 

 It is not so deeply cut, but the segments are similarly falcate and broadly crenate- 

 repand, and the sporangia are intermixed with brown articulate paraphyses just 

 as in the type. 



18. St. longicaudata (Liebm.) C. Chr. 1. c. 300, fig. 10. 

 Dryopteris longicaudata Maxon, Contr. U. S. Nat. Herb. l;i: 18, 1909. 

 Area: Mexico along the Andes to Peru and Bolivia. 



19. St. alloëoptera (Kze.) C. Chr. 1. c. 300, fig. 11. 

 Area: Costa Rica— Peru. 

 Additional synonyms: Polypodium oligophlebium Bak. Syn. Fil. 506, 1874. 



Dryopteris paucinervata C. Chr. Ind. 283, 1905. 



Polypodium heterophlebium Bak. Journ. Bot. 1N84: 363. 



Dryopteris heterophlebia C. Chr. Ind. 270, 1905. 



? Polypodium coalescens Bak. Journ. Bot. 1877: 164. 



Dryopteris coalescens C. Chr. Ind. 258, 1905. 

 The specimens on which Baker founded his two first named species are 

 rather typical S. alloëoptera. P. heterophlebium from Costa Rica, leg. Harrison 

 (Kew!) has narrower pinnæ and approaches S. longicaudata, from which it differs 

 by its shorter and broader pinnæ with many veins anastomosing. — P. oligophlebium 

 from Peru, Tarapoto, Cerro de Guayrapurima, Spruce nr. 4653 (Kew!) is that form 

 with few but very broad pinnæ, which I have figured. In general habit and cutting it is 

 nearly identical with S. opaca. The long stipe is clothed with several large, brown scales. 

 P. coalescens Bak. was founded on a most wonderful mixture of different things 

 collected by Sodiro in Ecuador (Kew!). The type-specimen (a single sheet) con- 

 sists of three young sterile plants and one fertile pinna. The latter is no doubt a 

 pinna of S. alloëoptera, and two of the young plants are probably belonging to the 

 same species. The third plant is entirely difTerent and does not belong to Stigma- 

 topteris; what it may be, I dare not decide. I should not hesitate to make P. 

 coalescens Bak. a synonym of S. alloëoptera, had Sodiro (Cr. vase. quit. 302) not de- 

 scribed the species more fully, and his description does not agree perfectly with 

 the specimen seen; thus he describes the stipe and rachis as pulverulento-pubescent, 

 both surfaces pubescent and lamina impari-pinnate with the terminal pinna stalked, 

 broader and shorter than the 5 — 7 pairs of lateral ones. These characters do not 

 correspond to any species of Stigmatopteris. On the other hand his description 

 very well agrees with the fertile pinna seen in other characters: size and shape 

 of the pinnæ, venation and position of the sori. 



D K. D. Viilensk. Selsk. Skr.. 7 R.ckke, nntuiviilensk. 0(4 mathem. Mii. X. 2. 11 



