48. POLTPODIUM, §§§§ DICTYOPTERIS. 317 



racMs and veins beneath pubescent ; main veins 2 lin. apart ; veinlets raised, 6-7 

 on a side ; sori small, medial. — Hk. Sp. 5. p. 8. 



Hab. Island of St. Thomas, W. Africa, Maim. 



77. P. (Goniopt.) stegnogrammoides. Baker ; caiid. subarborescent ; at. I5-2 ft. I., 

 firm, erect, pubescent upwards ; fr. 2-3 ft. 1., 1 ft. or more br. ; pinnas 6-9 in. 1., 

 1^ in. br.,. the apex acuminate, the edge bluntly lobed about a quarter of the way 

 down ; tescture subcoriaceous ; racMs and veins, beneath a little hairy ; minlets 

 prominent, 8-9 on a side ; sori in rows neay the midrib. — P. sandvicense, Hk. 

 Sp. 5. p. 5. (not Sp. 4. p. 267). Stegnogramma, Brack. 



Hab. Sandwich Isles. 



78. P. (GomoTpt.) pennigerum, Forst. • st. tufted, 6-12 in. 1., glabrous, slightly 

 scaly; fr. l|-2 ft. 1., 8-12 in. br. ; pinnce 4-6 in. 1., |-1 in. br., cut about 

 halfway down into blunt, falcate, slightly crenated lobes about 2 lin. br. ; lower 

 pinnce gradually reduced ; texture firm-herbaceous ; racliis and both sides 

 naked ; veinlets 6-8 on a side; sori in rows near the midrib. — Hk. Sp. 5. p. 7. 

 G. Forsteri, Moore. 



Hab. New Zealand. — ^Very near P'. tetragomtm, from which it diflers principally by 

 the lower pinnse being gradually reduced. 



79. P. (Goniopt.) unitum, Hk. ; St. 1-lJ ft. I., slender, naked ; fr. 2-3 ft. 1., 

 1 ft. br. ; pinncB 4-6 in. 1., |-J in. br., the apex acuminate, the edge bluntly 

 lobed about a quarter of the way down, the base truncate ; texture firm- 

 herbaceous ; rachis and both sides naked ; veinlets 6-6 on a side ; sori close to 

 the main veins. — Hk. Sp. 5. p. 5. 



Hab. Natal, Cameroon Mountains. — Barely, if at all, distinguishable from some of 

 the forms of P. tetragonum. 



80. P. (Goniopt.) tetragonum, Sw. ; st. ergct, 1-2 ft. 1., naked or slightly 

 viUose ; fr. 1-3 ft. 1., I ft. or more br. ; pinnw numerous, spreading, 6-8 in. 1., 

 ^-1 in. br., the lowest narrowed at the base and sometimes stalked, cut from a 

 quarter to halfway, down into blunt lobes ; texture thinly herbaceous ; racliis 

 and under side naked or slightly hairy ; veinlets 6-10 on a side ; sori in rows 

 near the midrib. — ;8, P. megakdus, Schk. ; pinnce I5 in. br., lobes J in. br., sub- 

 falcate ; veinlets 12-15 on a side. — Hk. Sp. 5. p. 3. 



Hab. Cuba and Panama, southward to Brazil and Peru. — Judging from the figures 

 quoted, this is P. and/rogynvm of Poiret ; and if so, that name has priority. It varies 

 greatly in the breadth of the pinnee and depth of the lobes. A full account of the forms 

 will be found in Ffe's Ferns of the Antilles ; and our a apparently includes his tenera, 

 leptocladia, pt/ramidata, Fid, tetragcma (five varieties), qimdrcmgularis, guadalupensis, 

 and hastcUa. Our /3 is placed by Mettenius in his latest publication in Aspidium. 



§§§§ Dictyopteris, Presl. Venation of Sagenia, i.e., veins anastomosing 

 copiously. Tab. 48. f. 0. Sp. 81-90. 



* Sori biserial. Sp, 81-86. 



81. P. (Dicty.) Barleri, Hk. ; st. tufted, 6-12 in. 1., slightly scaly at the 

 base ; fr. paTmately 6-lobed or more usually pinnate, with a large terminal 

 segment and 1-4 pairs of pinnae, the upper ones oblong-lanceolate, 4-6 in. 1., 

 1 in. br., nearly entire, the lowest pair with a deep lanceolate lobe at the base on 

 the lower side ; texture subcoriaceous ; both sides naked ; areolcB rather large and 

 regular, with copious free veinlets ; sori copious, principally in two rows near 

 the main veins. — Hk. Sp. 5. p. 100. 



Hab. Malay Peninsula and Isles. 



