100 PROCEEDINGS OF THE ACADEMY OF 



Its spikes are more slender than the other North American species. Rachis 

 somewhat scabrous, and its internodes 2 3 lines long. 



Trisetum glabrum, s. n. Radice fibrosa ; culmo glabro erecto geniculato 

 8 10 policari ; vaginis glabris ; ligula membranacea elongata fissa ; foliis 

 planis glabris 2 3 policaribus 1 lin. latis ; panicula elongata patente ; radiis 

 2-nis glabris basi nudis compositis filiformibus, spiculis 2-floris pedicellatis ; 

 glumis sequalibus lanceolatis acuminatis 3-nerviis glabris flosculos superanti- 

 bus ; valvulis glabris hyalinis ovatis subtruncatis apice 3-dentatis infra me- 

 diam aristatis ; arista geniculata flosculo duplo longiore. 



Texas. Dr. Linsecum. 



Glumes longer than the two paleaceous florets, which are vertical, the upper 

 having a long sericeus stipe. 



Trisetum interrupt um, s. n. Culmo geniculato pubescente erecto basi 

 ramoso S 12 policari ; radiis 3-nis sen solitariis scabris compositis basi ad 

 apicem densiHoris ; spiculis 1 2 floris sessilibus vel breviter pedicellatis ; 

 glumis scabris 7-nervatis acuminatis sequalibus valvulam subaequantibus 

 marginibus et apicibus albo-hyalinis ; valvulis glabris acutis paulo infra apicem 

 longe aristatis, inferiore bifida basi parce setulosa. 



Middle Texas. 



The lower flowering branches are partly included in the sheaths, and are 

 at intervals of from 1 2 inches from near the base of the culm to its summit, 

 forming a vertical succession of little panicles, which are from 1 li inches 

 long, densely flowered. 



Trisetum canescens, s. n. Radice fibrosa ; culmo erecto (3 4-pedali) 

 parce piloso ; vaginis inferioribus canescenti villosis, superioribus glabriuscu- 

 lis ; ligulis membranaceis (1 2 lin. Ion.); foliis planis paulo pilosis ; 4 6 

 policaribus, 3 4 lin. latis ; panicula elongata stricta patente 8 10 policari ; 

 radiis 5 7-nis scabris inaequalibus compositis ; spiculis 2-floris pedicellatis ; 

 pedicellis scabris ; glumis insequalibus carinatis acutis dorsis scabris, supe- 

 riore duplo latiore ; valvula inferiore glabra paulo infra apicem longe setulosa 

 apice bifida callo dense piloso. 



Oregon, Columbia Plains. Nuttall. 



Internodes of the panicle 1 2J inches long ; rachis terete and slightly sca- 

 brous ; branches of the panicle filiform and erect, the longest about 3 inches 

 in length ; margins of the glumes white and hyaline ; bristles of the palea 

 4 6 lines long : florets about 3 lines in length. 



Hierochloa occidentalis, s. n. Culmo glabro erecto 1^ 2 pedali sim- 

 plici ; vaginis glabris internodio brevioribus ; ligula membranacea apice fissa ; 

 foliis planis glabris 2 3 policaribus et circum 2 lin. latis ; panicula patente 2 

 3 policari ; radiis solitariis compositis glabris basi nudis ; pedicellis 1 2-spi- 

 catis ; glumis ovatis acutis hyalinis 5 7 nerviis lateralibus et apicibus albidis, 

 caeteris ferrugineis flosculos fere sequantibus ; flosculis masculis lsevibus mu- 

 ticis parce ciliatis ; hermaphroditis glabris apice breviter ciliatis. 



Columbia woods. Nuttall. 



Lower branches of the panicle about 2 inches long, with lower half naked ; 

 internodes between the branches 6 15 lines long. 



Note No. 2. On Q.UERCUS HETEROPHYLLA, Mich. 



BY S. B. BUCKLEY. 



Since the first note was written, I have seen a young tree on the grounds of 

 Joshua Hoopes at West Chester, near Philadelphia, which grew from an acorn 

 obtained from a tree now living at Marshalltou a few miles from West Chester. 

 The Marshall tree is a seedling from the original Bartram Oak. The Bartrams 



[Feb. 



