S74 University of California Publications in Botany [Vol. lo 



wide at their base, 3 to 4 cells lonor; inflorescence antical J arising 

 from costa; involucre cup-shaped, laciniate. laeiniae short, acute, 

 numerous; archegonia long, narrow, reddish brown, 30; perianth 

 young and imperfect. No J* seen. 



Dimensions. — Plants 2 cm. long; fronds 8 ram. long X 4 mm. wide ; 

 casta. 75 mm. wide X -5 mm. thick; cells of wings .035 mm. to .045 

 mm. ; marginal teeth .35 mm. long ; involucre 2 mm. high X 1 mm. 

 broad ; archegonia .4 mm. long X -Oo mm. wide. 



Observations. — The only Pallavicinia from New Zealand with 

 which to compare P. Sctchellii is P. connivens (Colenso) St., which 

 has, according to Stephani's description (Proc. Linn. Soc, p. 270, 

 1893), reniform or sub-circular fronds, which are repeatedly furcate, 

 texture fleshy, marginal teeth straight, archegonia 6 to 8, with cells 

 0.025 mm. (Sp. Hep., p. 324, 1900). P. Setchellii has usually linear, 

 more rarely sub-orbicular fronds, with firm texture, marginal teeth 

 hamate, archegonia 30. Sterile forms of Pallavicinia may be mistaken 

 for Symphyogyna, which genus has also an antical inflorescence, but 

 as Stephani remarks (Proc. Linn Soc, p. 271, 1893), "The cylindrical 

 involucre distinguishes Pallavicinia at once from Symphyogyna, the 

 pistils of which are merely covered by a scale free at the sides and 

 inserted on the frond by its base alone, so that it can be turned back- 

 wards without a rupture." I add a figure of bract of Symphyogyna 

 grandibracieata St., a specimen of which I took occasion to compare 

 with my plant. 



Through the kindness of the Director of Kew, I have been able to 



see the original specimens of Pallavicinia connivens (Col.) St. The 



plant is much smaller, with a long stipe, which abruptly dilates into 



a radiate frond, margin with a few coarse teeth which might almost 



be called segments. 



Habitat.— Tauipo, Mav 16, 1904. No. 34. Tvpe Herb. Univ. Calif.. 

 No. 213704. 



Symphyogjoia Hymenophyllum (Hooker) M. et N. 

 Syn. Hep., p. 480. 



Habitat. — Pipiriki, May. No. 97. 



Solenostoma brevissimum Pearson 

 Habitat.— T&npo, May 15. No. 45. Pipiriki. May. No. 98. 



