56 The Ohio Naturalist. [Vol. VII, No. 3, 



Viburnum alnifolium Marsh., twigs and leaves stellate 

 tufted ; more dense on twigs and on veins on under side of leaves. 



Viburnum acerifolium L., leaves stellate tufted beneath. 



Viburnum pubescens Ph., leaves stellate tufted beneath. 



Viburnum molle Mx., leaves stellate tufted beneath. 



Viburnum lantana L., twigs and leaves densely stellate 

 tufted; leaves more dense beneath. 



Ohio Plants Which Have Peltate Scales. 



Hicoria minima (Marsh.) Britt. 



Hicoria ovata (Mill.) Britt. 



Hicoria laciniosa (Mx. f.) Sarg. 



Hicoria alba (L.) Britt. 



Hicoria microcarpa (Nutt.) Britt. 



Hicoria glabra (Mill.) Britt. 



Lepargyraea canadensis (L.) Greene. 



Chamaedaphne calyculata (L.) Moench. 



This list does not include plants having scales which are 

 glandular or whose function is mainly the excretion of resinous 

 material. 



Explanation of Plates V. and VI. 



Figs. 1, 2. Peltate scales of Lepargyraea canadensis. 

 Fig. ;3. Stellate hair of Lepargyraea canadensis. 

 Figs. 4, 5, G. Peltate scales of Chamaedaphne cah'cvilata. 

 Fig. 7. Stellate hair of Croton monanthogynus. 

 Figs. 8, 9. Peltate scales of Hicoria minima; top view. 

 Fig. 10. Peltate scale of Hicoria minima; side view showing stalk. 

 Figs. 11, 12. Stellate tufts of Hicoria minima. 

 Fig. 13. Peltate scale of Hicoria alba; side view showing stalk. 

 1.5, IG. Peltate scales of Hicoria alba. 



Stellate hairs of Solannm rostratum. 



Stellate hair of Solanum elaeagnifolium. 



Stellate hair of Solanum carolinense. 



Branched hair of Verbascum thapsus. 



Stellate hair of Verbascum thap.sus. 

 Figs. 22, 23. Stehate tufts of Helianthemum canadense. 

 Fig. 24. Dichotomously branched stellate hair of Alyssum alyssoides. 

 Figs. 25, 2G. Stellate tufts of Viburnum alnifolium. 



