BY W. W. WATTS. 773 



"Litho^ams." Van A. van R. ("Malayan Ferns") says, of D. 

 gongylodes (Nephrodium imitum), "rachis and surfaces naked;" 

 and, of var. propinqua, "rachis and under-surface hairy." Domin 

 apparently follows A. van R., in his var. "glahra" (tlie typical 

 form), and "var. propinqua/' which latter, he says, has, in Aus- 

 tralia, the wider distribution. 



This agrees with Robert Brown's original descriptions in the 

 "Prodromus," p. 148, where Nephrodium unitum is characterised 

 as, "frondibns pinnatis, pinnis ensiformibus serrato-incisis, glab- 

 ris; incisuris semiovatis, acutis, venis indivisis, soris submargi- 

 nalibus, costa rhachibusque glabris." N. propinquum is described 

 as "frondibns pinnatis, pinnis ensiformibus, apice attenuatis sub- 

 tus pubescentibus inciso-pinnatifidis, lobis semi-oblongis acutis 

 venis indivisis, soris submarginalibus confertis, involucris barba- 

 tis, rhachi pubescentula." 



My specimens from Lake Barrine show the pubescent rhachis 

 and under-surface distinctly; and, therefore, I record them as var. 

 propinqua. 



D. PARASITICA (L.) O. Ktze.; Polypodium molle{J8icq.); Aspidtum 

 molle (Jacq.) Luerss. 



Banks of Barron River, Kuranda, and many other places; 

 July-Aug., 1913. 



Var. DiDYMOSORA (Benth.) Dom. 



Banks of Barron River, Kuranda; July-Aug., 1913. 



Dryopteris sp. 



Kuranda, on northern side of Barron River; and in French- 

 man's Creek, Babinda; July, 1913. 



I hesitate to separate this plant from B. parasitica; the fronds 

 show very similar characters, save that the stipes possesses several 

 pairs of auricles reaching almost to the base, and giving it a very 

 distinctive appearance. The whole plant looks like a diminutive 

 tree-fern, the rhizome being upright (some 6-9 inches in height). 

 The nervation and fructification are those of D. parasitica. Un- 

 fortunately, some good specimens of the whole plant I left behind 

 me in a part of Frenchman's Creek, to which I was unable to 

 return. 



