THE FERNS OF NORTH-WESTERN INDIA. 239 
off, they show the prolongations of the veinlets in them very distinctly ; but 
the veinlets appear to break connection between the lamina and involucre at, 
or ab a stage prior to, the maturity of the sorus. The involucres of A. cau- 
datum are coriaceous, and. narrower I think. 
The differences of venation and involucre, taken together with the now- 
known wide range of habitat—from Sind to China and Timor, and perhaps 
the West Indies—and the yet rarity of the plant, besides the differences of 
texture, quite justify the tardy elevation of A, Hdgewortha to a species. 
A. Hdgeworthii seems generally to have longer stipes than A. caudatwm has, 
sometimes almost as long as the fronds are. -A. caudatwm has very short 
stipes, unless the fronds have had to struggle out from between rocks or loose 
stones. 
4. A. Capillus-Veneris, L.; Syn. Fil. 123; C. R. 458; Bedd. 
H. B, 84. 
AFGHAN.: Kurram Valley—Aitch, 1879, 3200’, Aitch. 1884-85. 
TRANS-InD. STATES: Kafiristan and Badghis 5000’, Aitch. 1885; Kaghuni (7) 
5500’, Giles, 1886; Swat and Baraul 6-8500' (5 stations), Harriss, 1895, 4-6000' (3 
stations), Gatacre, 1895. 
KASHMIR: 35-8000’, Trotter, Duthie, MacLeod; “common in Kashmir in moist 
places” (MacLeod). 
PUNJAB : Hazara—Gatacre, Oertel, Trotter. Chamba—McDonell (tripinnate) ; 
Rawal Pindi, Aitch.; Kangra Valley Dist. W.—25-3000', 38-4000’ Trotter ; Kullu— 
5-6200', Trotter, Simla Reg. 35-6000’, Hope, Gamble ; Bisahir—7000', Lace. 
NW. P.: D. D. Dist —Jaunsar 3000’, Gamble, Mussoorie and below it 47-6000’, 
Hope; in the Dun 1-3000’—very common by running or trickling water and within 
reach of spray : on banks of canal cuttings, in Dehra ; 7. Garh. 3-4000', Duthie ; Saha- 
ranpur Dist.—Dolkhand, Gamble; Awmawn—Sarju Valley 3600’, Jagthana 5200’ 
8. and W.; below Naini Tal, in the Gola Valley, 5-6000', Hope, 1861: station 
long ago swept away in landslips; Gola Valley, 2500’, Hope, 1890 ; Kali Valley 
7-8000’, Duthie ; Ramganga Valley 4-5000’, Trotter. 
DIsTRIB.—Amer, : Florida, southward to Venezuela and Amazon Valley. Hurope ; 
United Kingdom (ireland, Isle of Man and S. W. Eng.}, Central and Southern Europe, 
Caucasus. Asia: Syria (Jerusalem, Sinai, Galilee), Siberia, Arabia, Belu- 
chistan, common all over N. Ind. ; Sind, Dr. Stokes ; Bengal—in the Ganges Valley 
(Arrah, Dinapur, and Caleutta); Himalaya and valleys at foot of the range, common 
up to near 6000’; Assam—Khasi Hills. Centr. Provs., India. §S.Ind.—Bombay and 
Madras Presidencies, common on west side up to 5000’. §. E. China, Japan. 
Polynesia. Afr.—Canary Islands and in many parts of the Continent, both North 
and South. 
The distribution of this species in India is nos fully indicated in the three 
books to which I restrict my references. I have specimens from walls in 
the Entally suburb of Calcutta, and I have taken it (a small size) from wells 
in Dinapore and Arrah; and Mr. Duthie got it at Pachmarhi in the Central 
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