MAXON—STUDIES OF TROPICAL AMERICAN FERNS, 568 
The following specimens are in the U. 8. National Herbarium: 
GuATEMALA: Near San Felipe, Depart. Retalhuleu, alt. 600 meters, Maron 
é€ Hay 3512; J. D. Smith 2744, Volcin de Ipala, alt. 1,500 meters, 
Pittier 1866. Mazatanango, Depart. Retalhuleu, Bernouilli 442 (type 
collection of P. bernouillit). San Andrés Osuna, Depart. Escuintla, 
C. & E. Seler 2582. Without exact locality, Watson; Mrs. W. P. Cock- 
erell, 
Mexico: District of Cordoba, Veracruz, Fink 81, 85} (in part). Finca 
Mexiquito, Chiapas, Purpus 6752. 
3. Polypodium platylepis Mett.; Kuhn, Linnaea 36: 137. 1869. 
Tyrer LOCALITY: Guatemala. 
DistRiBuTION : Guatemala (and southern Mexico?), at an altitude of 2,400 to 
2,500 meters. Ascribed also to “ New Granada,” probably in error. 
The present species was described from material said to have been collected 
in “New Granada” by Linden and in Guatemala by Skinner. Hieronymus 
states? that he has not seen the original specimens, although these should pre- 
sumably be in the Mettenius herbarium at Berlin; nor was Professor Under- 
wood able to find them there. There is, in any case, good reason for doubting 
that Colombia is the source of Linden’s plant, since, as pointed out on page 
564, several interchanges of locality data are known to have been made for 
plants collected by him in Mexico, Colombia, and Cuba, and since this species 
has subsequently been found chiefly, if not altogether, in Guatemala. Lin- 
den’s specimen almost certainly came from the mountains of southern Mexico. 
In fact, there is at Kew, according to Dr. Underwood's notes, a specimen of this 
species, collected at Mirador, Veracruz, by Linden in 1838. This may be a dupli- 
cate of that studied by Mettenius and Kuhn. Nevertheless, in view of the un- 
certainty, it is probably better to take as the type Skinner’s plant, concerning 
the source of which there is no doubt. There is also a duplicate of this at Kew. 
Polypodium platylepis is readily recognized by its serrate-tipped pinnz and 
by its disproportionately long, slender, shaggy stipes. 
The following specimens are in the U. 8. National Herbarium: 
GUATEMALA! Humid forest belt of the Volcin de Agua and in the “Altos ° 
above Solalf, alt. about 2,500 meters, May 31, 1882, Lehmann 1484. 
Above Antigua, alt. 2,400 meters, February 18, 1905, Kellerman A48TT. 
4, Polypodium lindenianum Kunze, Farrnkr. 2: 83. 1851. 
Polypodium cancellatum Fée, Gen, Fil. 242. 1852; Mém. Foug. 6: 12. 18538. 
Polypodium verapax Christ, Bull. Herb. Boiss, II. 5: 253. 1905. 
Type LOCALITY: San Bartolo, Chiapas, Mexico. 
DISTRIBUTION : Southern Mexico and Guatemala, ascending to 2,100 meters. 
ILLusTRATIONS: Kunze, op. cit. pl. 134; Fée, Mém, Foug. 6: pl. 7. f. 2 (as P. 
cancellatum). 
The type of the present species was collected by Linden, three separate locali- 
ties being mentioned by Kunze—San Bartolo, Yerbabuena, and the Province of 
Chiapas. There are several towns in Mexico called San Bartolo, the one here 
meant being doubtless the small place of that name (not shown on most maps) 
about 35 miles due north of Tuxtla, Chiapas. Yerbabuena also is in Chiapas, 
about 60 miles in a general easterly direction from Tuxtla. Linden’s third 
locality, mentioned by Kunze as the “ Provinz Chiapas,” was doubtless near by. 
The last is said to be at about 7,000 feet altitude, the highest elevation known 
for this species. Munch has recently re-collected it in this general region.” 
7 Bot. Jahrb. Engler 34: 531. 1905. 
? Christ in Bull. Herb. Boiss. II. 5: 253. 1905; 5: 730. 1905. 
