﻿136 Small : Studies in the Botany 



nish a character not yet noted as a means of distinguishing between 



I 



the present species and Hibiscus coccincus. 



^Phacelia Boykinii (A. Gray). 



Pliacclia fimbriata var. Boykinii A. Gray, Proc. Am. Acad. 

 10 : 320. 1875. 



Annual, sparingly strigillose. Stems erect, more or less 

 branched, 1—2 dm. tall, glabrate in age : leaves 1—3 cm. long ; 

 blades pinnatifid, rough, the lower ones petioled, the upper sessile ; 

 segments obtuse, abruptly pointed or mucronate : racemes many- 

 flowered, 3-7 cm. long : pedicels erect, about as long as the 

 calyx at maturity: calyx bristly; segments oblong, 3-3.5 mm - 

 long, prominently nerved, obtuse : corolla bluish, 7-8 mm. broad ; 

 segments oblong-obovate, laciniate ; appendages obsolete : filaments- 

 exserted, sparingly villous : capsules ovoid-globose, 2.5 mm. in 

 diameter. 



In dry soil, Columbus, Georgia. 



There can be no doubt that this form is specifically' distinct 

 from Pliacclia fimbriata and other related species. The firmer 

 texture of the foliage, the rigid stems and branches, the abruptly 

 pointed or mucronate leaf segments, the many-flowered narrow 

 racemes with their short pedicels, the small corollas and small 

 capsules are characters separating the plant from P. fimbriata. The 

 original specimen was collected by Dr. Boykin in 1839. 



NEW SPECIES OF HERBACEOUS PLANTS. 



vThalictrum caulophylloides. 



Perennial by a horizontal rootstock, deep green, glabrous. 

 Stems erect, 6-12 dm. tall : leaves 2-5 dm. long, spreading, with 

 long petioles : leaflets firm ; blades oval to suborbicular in outline, 

 often broader than long, 4-9 cm. in diameter, glaucous and prom- 

 inently nerved beneath, cordate or truncate, 3-5-lobed above the 

 middle ; lobes apiculate : petiolules slender, 5-30 mm. long : 

 pedicels 8-20 mm. long, wire-like : fruit elliptic. 6 mm. long, 

 sharply ribbed, contracted into stipes 1.5-2 mm. long, tipped by 

 the persistent club-shaped style. 



On mountain slopes, Tennessee. Spring and summer. 

 I have suspected the existence of another species of Thalutrnm 

 in the southern Alleghanics for several years. This winter Trof- 



