252 PROCEEDINGS OF THE ACADEMY OF [DeC, 



bluer on lobes, paler within throat and in a triangle at base of each 

 lobe, the throat within with fine longitudinal violet-purple lines. 

 Sterile filament with slightly yellowish hairs. 



The pecuhar dimorphism of the leaves of this species, as well as 

 the occurrence of bipinnatifid leaf -blades, is unique in this genus. 



Pennell (Georgia)— 9527. 



2. Penstemon multiflorus Chapm. 



Pensiemon pubescens multiflorus (Chapm.) Benth. in DC. Prod. 10: 327. 

 1846. "In Louisiana et Florida. P. multiflorus Chapm. mss."_ Speci- 

 men seen in Herb. Columbia University at the New York Botanical Gar- 

 den, from "sandy pine woods, between Mariana & St. Andrew's Bay," 

 collected by A. W. Chapman "Oct., 1838," and labeled "probably a 

 distinct species," is probably an isotype. 



Penstemon multiflorus Chapm.; Small, Fl. S. E. Un. St. 1061. 1903. 



Sandy or gravelly soil, scrub-oak land or pine land, through 

 peninsular Florida, and westward through Middle Florida to the 

 West Florida Pine Hills, and in extreme southern Georgia. 



Flowering from May to July, and soon ripening fruit, southward 

 flowering and fruiting throughout the year. Corolla white, within 

 slightly purple on proximal part of tube, and sometimes on the 

 lobes. 



Pennell (Florida)— 9539, 9548, 9644. 



3. Penstemon digitalis Nutt. 



Chelone digitalis (Nutt.) Sweet, Brit. Fl. Card. pi. 120. 1825. " Pent- 

 stemon Digitalis Nutt. . . . Found by Mr. Nuttall in the Arkansas 

 territory of North America. . . . The plant from which our draw- 

 ing was taken was received last autumn from New York, by Mr. Ander- 

 son, of the Apothecaries' Garden at Chelsea, to whom it was sent by 

 Mr. Hogg." A careful description and illustration, certainly of the plant 

 now considered, the description being apparently more accurate than 

 Nuttall's own in mentioning the pubescence of the anthers. 



Penstemon digitalis Nutt., Trans. Amer. Phil. Soc. ser. II. 5: 181. 1837. 

 "Hab. in wet woods and prairies [Arkansas Territory]; common. [T. 

 Nuttall.]" Possible type, labeled " Pentsiemon latifolium., Arkansa, 

 Nuttall," seen in Herb. Columbia University at the New York Botanical 

 Garden. Described without reference to Chelone digitalis. 



Fields and edges of woodland, loam, western Tennessee and near 

 Birmingham, Alabama, probably elsewhere northward. Native in 

 the southwestern Mississippi valley; extensively introduced into 

 the northeastern United States, and probably an introduction into 

 the southeastern flora. 



Flowering in May and June, fruiting in August and September. 

 Corolla white throughout, or within on the anterior side with more 

 or less evident violet lines. 



4. Penstemon pentstemon (L.) Macm. 



Chelone 'pentstemon L., Sp. PI. 612. 1753. "Habitat in Virginia." Type 

 not verified, but must have been the species here considered, because 

 in 1753 this was certainly the only essentially glabrous species of the 

 Atlantic seaboard. 



