Broadhurst: Struthiopteris in North America 267 



complete specimen seen), 2-3 cm. thick; the scales very scanty, 

 ovate-lanceolate, about 1 cm. long, tobacco brown. Sterile fronds 

 80-100 cm. long; stipes numerous, close, 27-45 cm - long, usually 

 somewhat angulate, marked throughout with vestigial pinnae, 

 which vary from mere scars to wide but very short lobes, chestnut 

 to reddish purple and black, light colored in the channel, scales 

 usually lacking; lamina 60-80 cm. long, 20-32 cm. wide, elliptical, 

 rather abruptly reduced at the base (type D, with vestigial pinnae), 

 the lower pinnae more or less distant (1 cm.), gradually reduced 

 at the apex, the terminal pinna 3-8 cm. long, rachis light colored 

 on the upper side; pinnae 18-35-jugate, the upper curved or 

 falcate, the lower less curved to straight and oblong, the apex 

 attenuate, the base broadly dilated, especially in the lower pinnae, 

 which are 10-16 cm. long, 1-2 cm. wide (the lowest ones 3-6 cm. 

 long and 2.5-3.5 cm - wide at their bases) ; margins entire, unevenly 

 or not at all revolute; leaf tissue membranous to herbaceous, 

 punctate as in S. exaltata, without scales; veins distinct, never raised 

 nor grooved, the apices glandular as in exaltata, vein spaces 6-8 

 to 1 cm. Sporophyls 88 cm. long (in the only complete one seen) ; 

 stipes 30-40 cm. long, lighter than the sterile, the vestigial pinnae 

 less prominent; lamina 45-52 cm. long, abruptly reduced at the 

 base, the apex gradually reduced; pinnae 24-30-jugate, 10-15 cm - 

 long, 3-4 mm. wide, the apex with a sterile tip 1-5 mm. long, the 

 base dilated; indusium entire, not becoming lacerate; sporangia 

 greenish yellow in fresh specimens. [Plate 21.] 



Type in the U. S. National Herbarium, no. 429499 and 429500* 

 and in the New York Botanical Garden, collected near a stream 

 in a wet ravine, forest near Hardware Gap, Jamaica, altitude 

 4,200 feet, William Harris ioogg, February 19, 1908. 



The type collected in 1908 has made possible the separation 

 from 6". exaltata of several incomplete specimens in the herbaria 

 at Geneva and New York. S. jamaicensis differs from S. exaltata 

 in being thinner in texture, widest at the middle, and in having 

 more numerous pinnae with acuminate tips; it differs also in 

 having lower pinnae which are much more dilated at the base, and 

 which, if not separated, appear so because of the flaring sinuses; 

 the fertile pinnae are evidently not soriated on the dilations as in 

 5. exaltata. 



4. S. L'Herminieri (Bory) Broadh. comb. nov. 



Lomaria L'Herminieri Bory; Kunze, Farrnkr. 173. pi. 73. 1845. 

 Lomaridium Herminieri Presl, Epim. Bot. 263. 1851. 



