THE FERNS OF SOUTH AFRICA 
72 
Var. QUERCIFOLIUM Hk. and Gr. (Plate 2, Fig. 2) is 
larger, with upper pinnae three-quarter inch long, and more 
or less pinnatifid again, but grows among the other, and 
seems only to consist of more luxuriant specimens. 
In our first edition T. montanum was named T. pusil- 
lum Sw. 
Our T. montanum and T. erosum are evidently very closely 
related, and may possibly, when known in growth, be passable 
as forms of one species ; Kuhn considers our present plant 
distinct from the South American T. pusillum Sw., and 
places it in another South American species, T. reptans 
Mett., var. major Mett. Christensen maintains both these as 
South American but places our plant in T. montanum , which 
he considers also tropical American as well as Natalian. 
T. montanum. Hk. Ic.pl. t. 187, 1837; C. Chr. Index Fill cum, 645. 
T. pusillum Swartz. Hk. and Bkr, Syn. Fil. 77 ; Wood’s Natal 
Ferns , p. 6; Sim, Ferns of S. Africa, 1st ed., p. 54; Wood’s Hand- 
book of the Flora of Natal, 1 66. 
T. quercifolium. Hk. and Gr. Ic. Fil. tab. 115; Hk. and Bkr, Syn. 
Fil. 465. 
T. Robinsoni Hk. Bak. four. Linn. Soc. 9, 339. 
T. reptans Mett. Var. major Mett.; Kuhn, 37. 
Natal. — On damp rocks in the up-country districts. Inanda (Wood), 
Kranzkop, Zwaartkop, Maritzburg, Noodsberg, Nottingham (McKen), 
Kranzkloof, Umpumulo (Buchanan). 
Transvaal. — Sabie-hoek forest (Burtt-Davy, 1525 a). 
4. TRICHOMANES EROSUM Willd. 
Plate 2. Fig. 3. Nat. size, b Involucre, enlarged, c Part of frond, enlarged. 
Mr J. M. Wood writes me — “In 1887 I gathered a Tricho- 
manes, which I at the time took for T. quercifolium, plants of 
which I wanted for a correspondent at home. It was put 
into a small tin and posted without examination, reached 
home in good order, and was found not to be quercifolium. 
I much regret I have no specimen. My correspondent wrote 
me, July 28, 1887 — ‘It is exactly like some which were sent 
me from Singapore as T. muscoides , so I sent a bit to Kew. 
Mr Baker says it is certainly not quercifolium , nor is it typical 
muscoides, so he calls it a variety of the latter’.” Consequently 
in my first edition this was named T. muscoides Sw., var. 
