126 



DIDYNAMIA ANGIOSPERMIA, 



CHELONE. Gen. Pl. 1005 



Calyx 5.partitus, 

 3-bracteatus. Corol- 

 la ringens, ventricosa. 

 Filamentum quintum 



sterile,' caeteris 



? 



VIUS. 



Capsu la 



lilaris, 2-vaIvis. 

 Tiiina plurima, 



bre 



21oc- 



Se- 



mar- 



gine membranacea. 



->-:* 



- 1. Glabra. 



C foliis oblongisj 

 lanceolatis, acumina^ 

 tis, serratis, subsessili- 

 bus, glabrisj floribus 

 albis. 



Calyx 



5- parted 



J 



wdth 3 bracteal leaves 

 at base. Corolla rin- 

 gent, ventricose. 

 fifth filament sterile, 

 shorter than the rest, 



Capsu le 



2>cel]ed 



? 



2- 



V al V e d . Seeds m any, 

 with the margin mem- 

 branaceous. 



V^- 



Leaves oblonji, Ian 



ceolate 



&' 



5 



acuminate, 



serrate, nearly sessile 



% 



glabrous 



j white. 



? 



flowers 



^ 



Sp. pL 3. p. 225- Mich, 2. p. 24, var. alba. Pursli 2. p. 427' 



Nutt. 2- p. 51, 



c? 



Root perennial. Stem herbaceous, angled, taking root at the joints, 

 3 feet high. Leaves generally opposite, 2 — 4 inches long, slightly 

 acuminate, nearly sessile, and rather obtuse at base, somewhat rugose yet 

 glabrous. Flowers in all the species, in compact, imbricate, terminal 

 spikes. Bracteas shorter than the calyx. Segments of the calr/x obtuse, 

 nearly round. Corolla large, white, bearded internally on the lower lip. 

 Stamens shorter than the corolla. Anthers as in the whole genus, woolly 



Var. Lanceolata. Kuttall. 



i 



Leaves lanceolate, conspicuously acuminate^ serrate, sessile, under sur- 



ob- 



face pubescent. 



long. 



bably 



Bracteas scarcely dilated. Segments of the calyx 



Near Columbia and through 



the middle country the C. Glabra of Walter (p. 172.) is found and'agrees 

 very nearly with this variety. The leaves are lai'ger than those oif any 

 ^ecimens I have seen from the Northern States, pubescent, almost hairy 

 underneath, the flowers large, numerous and very comnactlv imbricated* 

 Sent me by Mr. Herbemont. 



Flowers in the summer. 



August 



) 



i<' 



