444 73. KAULFUSSIA. 73. ophioglossum. 



the central ones short-stalked, 4-6 in. 1., ^ in. hr., the apex sharply toothed, the 

 base rounded, the lowest shorter ; texture subcoriaceous ; veins mostly simple ; 

 rachis furfuraceous, slightly margined towards the apex ; fertile pinnas distinctly 

 stalkedj 2-4 in. 1., 2-3 lin. br. — Kze. t. 28. Heterodansea, Presl. 



Hab. Guadeloupe, V Herminier. — Our description is taken from an authentic specimen 

 communicated by M. Fde. Moore gives the Mexican J), cuspidata, Liebm., with which 

 we are not acquainted, as probably the same. 



10. D. elliptica, Sm. ; st. about 1 ft. ]., nearly naked, with 2-6 nodes ; barren 

 Jr. 1^-2 ft. 1., 8-12 in. br., with 6-9 pairs of pinncB, the upper sessile, 4-6 in. 1,, 

 1-1 1 in. br., the apex acuminate, entire or slightly toothed, the base cuneate or 

 slightly rounded, the lowest stalked, not reduced ; texture subcoriaceous ; veins 

 fine and close ; rachis naked, slightly winged at the top ; fertile pinncB similar, 

 but narrower and more distinctly stalked. — Hk. & Gr. t. 61. D. geniculata, 

 Raddi, t. 5. 



Hab. West Indies to South Brazil. — The commonest species. D. Sellowicma, Presl, is 

 probably a nodeless variety. 



11. D. nodosa, Sm. ; st. I5-2 in. ]., strong, erect, nodose ; barren fr. 3-4 ft. 1., 

 1^-2 ft. br., with 10-15 pairs of pinnae, the upper ones sessile, the lower ones 

 short-stalked, not reduced, 6-12 in. 1., 1-2 in. br., the apex acuminate, the edge 

 entire or subrepand, the base cuneate or slightly rounded ; texture subcoriaceous ; 

 rachis naked, the upper part slightly winged ; veins fine, close, simple or once 

 forked ; fertile pinnas 4-6 in. 1., |-1 in. br. — Plwm. t. 108. Hk. Sf Gr. t. 61. 



Hab. Cuba and Mexico to Brazil. — D. dvAia, Presl, and D. longifolia, Desv. (figured 

 by Sturm in Mart. Fl. Bras. faso. 2. 3. t. 11), are probably nodeless varieties. Preal and 

 Sturm make two sections of the genus, characterized by the absence or presence of those 

 nodular swellings of the stem, but the character seems to be a very unsafe one. The 

 genus Damwopsis of Presl is founded upon a pinna figured by Raddi (Fil. Bras. t. 6) with 

 irregular anastomosing venation, under the name of D, paleacea. 



Gen. 72. Kaulftjssia, Blume. 



Caps, sessile, 10-15, quite concrete in raised circular masses, which are hollow 

 in the centre, with the oblong apertures on the inner face. Tab. IX. fig. 72. 



1. K. ceseulifolia, Blume; st. 12-18 in. 1., herbaceous, auricled at the base; 

 fr. ternate or quinato-digitate, the central pinna the largest, oblong-spathulate, 

 6-12 in. 1., 3-4 in. br., the edge subentire, the others similar but smaller, often 

 unequal-sided or lobed ; texture fleshy-herbaceous ; main veins pinnate, with 

 copious immersed areolse, with free included veinlets between them ; sori 

 copious, scattered. — Hk. <& Gr. t. 229. K. assamica. Griff. 



Hab. Assam, Philippines, and Malay Isles. — A curious plant, with a frond like a 

 chesDut-leaf, and the under surface dotted over with copious stomata-like pores. De 

 Yriese makes four species. 



Sub-Obd. VI. OPHIOGLOSSACE^. 



Caps, deeply two-valved, opening down the side nearly to the base, without a 

 ring. Vernation erect. Gen. 73-76. 



Gbn. 73. Ophioglossum, L. 



Caps, sessile, arranged in two rows so as to form a narrow close spike. Tab. IX. 

 fig. 73. 



