12 



FIELD COLUMBIAN MUSEUM BOTANY, VOL. III. 



Phymatodes lycopodioides (L.) comb. nov. 

 Polypodium lycopodioides Linn. Syst. Nat. 2:691. 

 Fronds chartaceous, alternate along the long, densely scaly root- 

 stock, linear-lanceolate, oblong-lanceolate or ovate, blunt or acutish 



at the apex and tapering to a 

 short petiolulate stipe. Veinlets 

 3-serial, arch-anastomose. Sori 

 large, globular, arranged in two 

 parallel rows one on each side of 

 the midvein and equal distance 

 between it and the margin; all 

 borne somewhat irregularly on the 

 anastomosis of several veinlets; 

 sporangia nearly circular in out- 

 line, finely and regularly anasto- 

 mose-veined; spores phaseoloid, 

 opaque, the concave side unoccu- 

 pied by a membrane. 



Rootstalk .25-3 meters long; 



stipes about 2-3 cm. apart; fronds 6-18 cm. long, 1-2.5 cm - broad. 

 Maya name: X-NAAB-DUD, "The Kiss of the Naab," probably in 

 satirical allusion to the clinging embrace of the women of the indig- 

 enous Pueblo of Tenabo. 



Hab. Climbing the trunks of trees, in dry open woods. Cenote" 

 of Kikil, Schott 768 ; Chichen Itza, Jan. 18, 1895, Millspaugh, Armour 

 ^Exped. 134; "trailing ten feet, in an old field near Izamal," Gaumer 

 528, and climbing trees at San Anselmo, 1826, and at Chichankanab, 

 1825 ; climbing Sabal trees at the Caleta, Cozumel, Millspaugh, PI. 

 Utowance 1534. The specimen reported by Dr. Gaumer as trailing on 

 open ground has very narrow, lanceolate leaves, 1.2x17 cm., and is 

 in fine fruiting condition. 



S C H I Z A E A C E JE . 



Ferns with simple or pinnate leaves. Sporangia ovoid, sessile, 

 borne upon the under surface of altered leaflets arranged in spikes or 

 panicles, and provided with an apical ring; dehiscence vertical, longi- 

 tudinal. 



ORNITHOPTERIS. 



Fronds erect, commonly 3-branched, the middle branch sterile 

 and i-3-pinnate. Fertile fronds paniculate at the apex, divisions 

 many, one-sided, narrow, minute. Indusia none. Sporangia attached 

 by their sessile bases in a double row to the under side of the divisions; 

 apical ring several rayed. 



