BILTMORE BOTANICAL STUDIES 



9 



quite entire : upper leaves much reduced in size, linear-lanceolate 

 to linear-oblong : stem striate, glabrous, alternately branched 

 above the middle : peduncles slender, striate, finely and sparingly 

 scabrous-pubescent, especially near the summit : heads 8-20 or 

 even more, containing 20-60 or more flowers : involucres 4-6 mm 

 high, the bracts oblong, rounded at the apex and minutely mucro- 

 nate, smooth, r-2 mm wide, thin in texture at flowering time, the 

 midrib slightly thickened : florets g-i2 mm long : corollas slender, 

 pubescent, the tubes about 5 mm long, very slightly dilated at the 

 throat : pappus scales 1.5— 2 mm long, the upper half lacerate : 

 achenes ribbed, hairy : chaff of the receptacle linear, pointed. 



Marshallia ramosa grows in moist, sandy pine-lands at Eastman, Georgia 

 (type locality), where it was collected in full flower June 5, 1900, by Mr C. L. 

 Boynton, of the Biltmore Herbarium. At this station the species is very 

 abundant, giving color to large patches of ground. It is related to M. cces-pitosa 

 Nutt., 1. c, especially the variety described below, differing mainly from the 

 latter in the extremely floriferous habit, shorter and more obtuse involucral 

 bracts and by the shorter pappus scales. The type material is preserved in 

 the Biltmore Herbarium. 



Marshallia clespitosa Nutt. Plate VII. 



DC. Prod. 5:680, 1836. — "1. M. c^espitosa (Nutt. ! in litt. 

 1825), glabra caespitosa, caule simplici aphyllo i-cephalo, foliis 

 elongato- et lato-linearibus subobtusis integerrimis, invol. squamis 

 oblongo-linearibus obtusis, paleis recept. linearibus. 4 in Amer. 

 bor. ad Red-River legit cl. auctore. Habitus fere Armeriae. 

 Caulis 8-io-pollic. teres striatus. Cor. exsicco albae, forte sub- 

 roseae. Achaenium villosum. (v. s. )." 



Hook. Bot. Mag. t. 3704; Torr. & Gray, Flora 2:391, 1842. 



Moist woods and prairies, Arkansas and Indian Territory to 

 western Louisiana and Texas. 



The following specimens are referred here : Texas : Houston, Elihu Hall, 

 No. 365; F. Lindheimer, Nos 32, 110 and 47; Drummond, Nos. 111 and 174 ; 

 Austin, Berlandier, No. 1566. Arkansas: Fort Gibson, Dr. Englemann. 

 Indian Territory : McAllister, J. H. Oyster, May 16, 1883 ; Limestone Gap, 

 G. D. Butler, No 11150. Louisiana: Hale, Leavenworth. 



Marshallia caespitosa signata n. var. Plate VIII. 



A perennial herb 2-4 dm tall : stems tufted, striate, usually 

 branched, leafy to near the summit ; the peduncles clothed with 



