Harvard University Herbaria & Libraries

Ericaceae
GH: 01762328 Rhododendron arborescens (Pursh) Torrey USA: Tennessee [data not captured] F. W. Pennell 11333 1923-5-30
Lamiaceae
GH: 01596435 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Pennsylvania Westtown F. W. Pennell 11263 1923-7-11
Onagraceae
GH: 01643939 Oenothera tetragona tetragona Roth USA: Pennsylvania Westtown F. W. Pennell 11250 1923-7-11
Orobanchaceae
GH: 02033361 Aureolaria virginica (Linnaeus) Pennell USA: Pennsylvania Westtown F. W. Pennell 11856 1923-8-28
Plantaginaceae
GH: 01999736 Gratiola neglecta Torrey USA: Virginia [data not captured] F. W. Pennell 11817 1923-6-23
GH: 02000011 Gratiola virginiana Linnaeus USA: Tennessee [data not captured] F. W. Pennell 11328 1923-5-30
GH: 00091134 Penstemon alluviorum Pennell USA: Arkansas Jonesboro: Moist sandy open land F. W. Pennell 11504 1923-6-7
GH: 00091191 Penstemon brevisepalus Pennell USA: Tennessee Crossville: Oak woods over shale F. W. Pennell 11311 1923-5-30
GH: 02118020 Penstemon calycosus Small USA: Indiana [data not captured] F. W. Pennell 11750 1923-6-18
GH: 02118025 Penstemon calycosus Small USA: Kentucky [data not captured] F. W. Pennell 11707 1923-6-17
GH: 02118105 Penstemon canescens (Britton) Britton USA: Tennessee [data not captured] F. W. Pennell 11810 1923-6-22
GH: 00091241 Penstemon deamii Pennell USA: Indiana Henryville: White Oak hillside F. W. Pennell 11733 1923-6-17
GH: 02119047 Penstemon digitalis Nuttall ex Sims USA: Missouri [data not captured] F. W. Pennell 11634 1923-6-10
GH: 00091191 Penstemon pallidus Small USA: Tennessee Crossville: Oak woods over shale F. W. Pennell 11311 1923-5-30
GH: 02121449 Penstemon pallidus Small USA: Missouri [data not captured] F. W. Pennell 11643 1923-6-10
GH: 02121436 Penstemon pallidus Small USA: Missouri [data not captured] F. W. Pennell 11682 1923-6-12
GH: 02121492 Penstemon pallidus Small USA: Tennessee [data not captured] F. W. Pennell 11385 1923-6-2
GH: 01801067 Penstemon tubaeflorus Nuttall USA: Missouri [data not captured] F. W. Pennell 11637 1923-6-10
GH: 01811798 Veronica serpyllifolia Linnaeus USA: Tennessee [data not captured] F. W. Pennell 11318 1923-5-31
Scrophulariaceae
GH: 01843065 Mimulus alatus Aiton USA: Maryland Porter's Bridge F. W. Pennell 11282 1923-8-11
GH: 02041872 Scrophularia marilandica Linnaeus USA: Pennsylvania Westtown F. W. Pennell 11862 1923-8-28