BOTANICAL GAZETTE. 21 



Lycopodium, imuidatitm, L., Vcar. elongatum. Stem creeping, si)aringly branched 

 (11^-3 feet long); leaves subulate, attenuate, entire, spreading; peduncles slender, erect 

 or leaning (10-15 inches long), the scattered leaves narrowly subulate ; those of the spike 

 longer, spreading. — Wet banks, Apalachicola, Florida. 



Lycopodium cennfum,L. Stem slender, forking near the base, the divisions arcu- 

 ate-recurved, rooting at the tips, the short alternate branches forking, and terminated 

 by the short (4-6 lines long) nodding spikes: leaves lax, about G-ranked, linear-subulate, 

 entire, spi-eading or recurved, those of the spike ovate, acuminate, the margins bristly. 

 —Wet sandy places near Waldo, and Duval county, East Florida {Curtiss). 



Marsilea unciiiata, A. Braun. Stem long, filiform: leaflets fan-shaijcd, smooth, or 

 with few scattered hairs, entire, 6-8 lines long, the slender petiole 3-6 inches long; spore- 

 case oval, compressed, horizontal, pubescent, 2-toothed, of which the upper one is 

 uncinate-incurved, half as long as its erect stipe.— Banks of the Mississippi below 

 Vicksburg. 



'o- 



Salix Barclayi Anders, a native of the Northern States. Among the Willows 

 of the Philadelphia Acad. Herbarium we find a folded sheet containing a miscellaneous 

 lot of undetermined leaves and aments frcjm Kodiak and Sitcha, collected by the late Dr. 

 Kellogg, of the United Slates Coast Survey. Some of these are clearly t'Sdlix Barduyi, 

 And., of which no specimens were known to be extant in American herbaria, the types 

 of the species being preserved in "the great storehouse of the world's botany at Kew." 

 Our interest in this species is brought nearer home since it now^ appears that the jiecu- 

 liar willow^ fo'md on the lake shore near Chicago by Prot. Babcock, and which to avoid 

 the multiplication of supposed new species was briefly mentioned in his Cataloge of 

 the Plants of Chicago as S. cordata, var. gkmco2y7iylln, ahouM be referred to *S'. Barclayi; 

 or else this species, Alaskan forms and all, be reduced to a variety of »S'. cordata, of 

 which it apjiears to be a robust Western modification. The leaves are broader and 

 shorter than in *S'. cordata, with somewhat the consistency of S. lucida, and when young 

 turn black in drying; the capsules are much larger: the style longer, and the pedicels 

 (mostly concealed by the densely villous scales) though showing the ordinary variation 

 in length are shorter than in S. cordata, but not so short (even in specimens from Ko- 

 diak) as described and figured by Andersson. TiiC aments resemble those of *S'. dis- 

 color, in size and woolliness. The common form with us accords with Prof. Anders- 

 son's var. grandifolia. Leaves 2 inches long by an inch broad, dark green and some- 

 what shining above, conspicuously glaucous beneath, minutely and sharply serrulate, 

 c^cc. In specimens from Alaska the leaves are rarely floccose villous especially when 

 young or the mid-rib at least tomentosc above, l)ut they are vc^ry variable in this re- 

 spect, often quite glabrous, and some of them precisely similar to forms collected by 

 Prof. Bal)Cock. 



It is remarkable that this Willow should not have been found at intermediate 

 stations in the Northwest by either Kichardson, Drummond, Bourgean or Dr. Lyall, nor 

 have we ever received it from elsewhere than the west sliore of Lake Michigan, tliough 

 favored by many friends in the Northern States with the Willows of their respective 

 localities. — M. S. Bebb. 



Lichens of Southern Illinois. — Mr. J. Wolf, of Canton, collected the following 

 Lichens iu Southern Illinois in the summer of 1877: 



1. Ilamalijia calicaris Fr. 6. pvlveridenta (Schreb.) Nyl. 



2. Usnea barhata (L.) Fr. 7. spcciom (Wulf., Fr.) 

 8. Parmelia saxatilis (L.) Fr. 8. Nej)hroina lavigattdit Ach. 



4. caperata, (L.) Ach. !). /'mi/iana riiifniphylla'{Hw.) De]. 



5. Phyncia aquila, var. dcfuuHa Tuck. 10. lencoatirta Tuck. 



