— 24 — 



NOTES ON NARDIA GRENULIFORMIS (AUST.) LINDB. 



Annie Lorenz 



The writer had recently the good fortune of discovering a second Connecti- 

 cut station for Nardia crenuliformis (Aust.) Lindb., in Glastonbury, the first one 

 (for New England as well) being at Beacon Falls, where it was collected by Dr. 

 Evans in 1907. 



At this new station, which is in the ravine of Roaring Brook, South Glas- 

 tonbury, the plants grew abundantly on schistose granulitic gneiss, on the south- 

 ern bank of the brook, which is in shadow most of the time. The mats extended 

 up the rocks not over a yard above the water-line, and the nearer the brook, the 

 more luxuriant the plants, as the brook is extremely dirty. 



The plants were associated with Conocephalum, Blasia, Pellia, Geocalyx, Sca- 

 pania nemorosa, Catharinaea angustata, Mnium sp., etc., and the more robust plants 

 were reddish. Perianths with green capsules were plenty, also antheridial 

 spikes, but the antheridia were gone. 



The general effect in the field is of a Nardia, but of a large crenulata rather 

 than of hyalina, which is generally less prostrate. The very concave, bordered 

 leaves and purple rhizoids (purple madder with a touch of rose madder) identify 

 it in the field. 



Austin, who stated that it was abundant about Closter, N. J., insisted that 

 it was a good distinct species, wherein he was quite correct. Lindberg's hesita- 

 tion, on the other hand, was from lack of familiarity with it in the field. 



The ^ plant is apparently undescribed, beyond the statement that the 

 species is dioicous. It resembles that of N. crenulata; there are 5-7 pairs of $ 

 bracts, which are imbricate, unequilateral and saccate, all intercalary on plants 

 observed. 



Dr. Evans gives such complete notes on the subject in Rhodora X, Oct. 

 1908, p. 186, that additional comment is unnecessary. As this species has not 

 been previously illustrated, figures are subjoined. 



Hartford, Connecticut, November 1915. 



Explanation of Plate II 

 Nardia crenuliformis (Aust.) Lindb. 

 All figures drawn from living material from South Glastonbury, Conn. 



1. Plant with perianth, x 45. 6. Leaf, x 80. 



2. Antheridial plant, x 45. 7- Cells at margin of leaf, x 570. 



3. Sterile plant, x 45. 8. Cells at center of leaf, x 570. 



4. Perichaetial bract, x 80. 9- Lobes of perianth mouth, x 570. 



5. Perigonial bract, x 80. 



