NO THO CHL^NA . 



611 



N. (Cincinalis) Hookeri— Cin-cin-a'-lis ; Hook'-er-i (Hooker's), Eatoii. 



This thoroughly distinct, greenhouse species, native of North America, 

 must not be confounded with N. Hookeri of Lowe, which is only a form of 

 N. nivea. Referring to the North American species, Eaton (" Ferns of North 

 America," ii., p. 26) says : " It is found growing in wild state in clefts 

 of rocks in canons and on the mountains from the Rio Grande to Arizona, 

 and perhaps extending into Mexico. It has also been collected between 

 Western Texas and New Mexico by Ch. Wright, sent from New Mexico also 

 by Dr. Bijelow, Schott, and Dr. Seguin, and 

 was found near Camp Bowie, in Arizona, by 

 Professor Rothrock and Mrs. Sumner. It was 

 more recently collected on the journey from 

 San Luis Potosi, in Mexico, to San Antonio, 

 Texas, by Dr. Parry." In general appearance 

 this pretty little plant much resembles the 

 better-known Gymnogramme triangularis. Its 

 five -pointed, star- shaped fronds (Fig. 148), about 

 Sin. each way, are produced from a short- creeping 

 rootstock, at the end of which the wiry, reddish- 

 brown, smooth, shining stalks, about 6in. long, 

 are clustered. The frond consists of a middle 

 portion of broadly -triangular form, supported 

 on a short but narrowly-winged stalk, and of 

 two lateral divisions, which are stalkless. 

 The upper surface of the fronds is smooth 

 and of a dull, rather dark shade of green, 

 while the powder with which the under- 

 side is copiously coated greatly varies in 



colour, sometimes being almost white or pale sulphur-yellow, while on some 

 specimens it is of quite a deep yellow, inchning to orange. — Eaton, Ferns of 

 North America, ii., t. 49. 



Fi§. 748. Frond of Nothochlsena Hookeri 



(J nat. size). 



N. hypoleuca — hyp-ol-eu'-ca (white beneath), Kunze. 



This greenhouse species, native of Chih, is probably the most matted 

 of any of the group, although the stalks upon which its fronds are borne, 



2 B 2 



