-56 — 



No. 13. Very doubtful, as this is a species of the Northern and Eastern 

 states; no specimens having been collected in Missouri since then that are cer- 

 tainly referable to this species, although specimens collected at Pleasant Grove, 

 in 1900, have been referred to it. 



No. 14. Not identifiable, as it probably was only a herbarium name of 

 Pech's. The mere citing of Pech as the author of this species and of No. 3, and 

 of a number of species of fungi farther on in this Catalogue, shows clearly that 

 Pech was the author of the catalogue. 



No. 15. Very doubtful, as this is a species of the Northern and Eastern 

 states, and has not been collected since in the State. Apparently Pech did not 

 recognize nor collect any species of Astomum, two species of which, A. Sullivantii 

 Schimp., and A. crispum (Hedw.) Hampe, are common on the ground in pastures 

 and fields in Missouri, and I suspect that one or the other of these was mistaken 

 by Pech for Pottia. 



No. 16. Possibly correct, as it has been collected at several localities in 

 Eastern Missouri, but is very rare. Apparently Pech did not collect any species 

 of Physcomitrium, although P. turbinatum (Rich.) Brid. is abundant in meadows 

 and old fields everywhere in the State, and P. Drummondii Britton is common 

 in similar situations. 



No. 17. Very doubtful, as this is a species of the Northern and Eastern 

 states, and has not been collected in the State since. 



No. 18. Probably correct, as this species is common on trees in Eastern 

 Missouri. 



No. 19. Intended no doubt for Weissia americana Lindb., and very doubt- 

 ful, as this is a species of the Northern and Eastern states, and it has not been 

 collected again in the State. Pech apparently did not collect any species of 

 Orthotrichum , although 0. Braunii and 0. ohioense are common on trees in 

 Eastern Missouri, and 0. Porteri Austin is very common on rocks throughout 

 the State. It is possible Pech mistook one of these for Weissia. 



No. 20. Probably correct, and what we now call Grimmia apocarpa (L.) 

 Hedw., a common species on flat rocks throughout the State. Pech apparently 

 did not find G. campestris Burch., a handsome attractive species common on 

 sandstone boulders in Eastern Missouri. 



No. 21. Probably correct, and what is now named Catharinea undulata 

 (L.) W. & M., a conspicuous species on moist banks in woods, and very likely 

 including the tall-capsuled form, Catharinaea undulata altecristata (R. & C), 

 (Atrichum undulatum altecristatum R. & C, Bot. Gaz. 15: 58. 1890), which is 

 usually found with the specific form and which had not yet been described. A 

 still more common species of Catharinaea, C. angustata Brid., of similar situations, 

 apparently was overlooked by Pech. 



No. 22. Probably correct, as it has been found on sandy walls of ravines 

 in several localities in Missouri. 



No. 23. Very likely correct, as it is a very common species on rocky hills 

 in Eastern Missouri. 



No. 24. Probably correct and what is now called Polytrichum ohioense R. 

 & C., a common species on rocky ground in Eastern Missouri. 



