266 BROADHURST: STRUTHIOPTERIS IN NORTH AMERICA 
writers with Lomaria Plumieri Desv. The broad, horizontal 
pinnae pictured in the type of exaltata separate it positively from 
Plumieri with its narrow, falcate pinnae, pictured by Plumier. 
L. mucronata, which Christensen refers to Plumieri, is much 
nearer exaliata. Fée, in this, as in several other original descrip- 
tions, makes contradictory statements regarding the size. This 
mistake led to two others: (1) the publication of L. Féei asa 
distinct species; and (2) the placing of L. exaltata under L. L’Her- 
miniert as a variety. Christensen includes exaliata in L’Her- 
miniert; although the immature sterile laminae of exaliata some- 
times resemble the mature ones of L’Herminieri in proportion and 
in the shape of the pinnae, they seem otherwise distinct. 
Four sheets from Grenada, collected by Sherring (October to 
May, 1890-91) show young specimens, which are more delicate 
in texture and bear pinnae which are shorter and more like those 
of L’Herminieri. The basal reduced pinnae are prominent, more 
numerous, and contiguous. They are accompanied by taller but 
immature fertile fronds; no mature sterile or fertile fronds from 
the island have been seen. At present it seems best to leave these 
Sherring specimens in S. exaltata. 
Three sheets from Costa Rica (‘‘Foréts de l’Achiote, Volcan 
de Poas,” altitude 2,000 m., Tonduz 10709) have laminae with 
wider sinuses, and occasionally 2 or 3 pairs of semicircular lobes 
at the base. The pinnae are proportionately as well as actually 
narrower, and the fronds have an open appearance not really 
characteristic of the species. Christ named them L. L'Hermimer', 
but they seem much nearer exaltata, especially in the shape of the 
lamina and of the pinnae. Maxon’s no. 5671 (humid forests of 
the upper Caldera watershed, between ‘‘Camp I” and the Divide, 
Holcomb's trail, above El Boquete, Chiriqui, altitude 1,65” 
1,925 m.) has pinnae which are more curved; Maxon’s n0. 5477 
from the same region (humid forest around Los Siguas Camp, 
southern slope of Cerro de la Horqueta, Chiriqui, altitude about 
1,700 m.) has wider sinuses in the lower part of the lamina, 
the vestigial pinnae are much more prominent than in the other 
specimens seen. 
3. S. jamaicensis Broadh. sp. nov. 
Plant terrestrial. Rhizome ascending, 24 cm. long (in the ont 
