Abstract
Mart.), intermediate sterile hybrids are occasionally found with either or both parents. These hybrids can be distinguished from L. lucidulum by their abortive spores and the presence of stomates on both surfaces of the leaves. The chromosome number of Lycopodium lucidulum Michx. has been reported several times from North America and India. The counts from India (Mehra & Verma, 1957; Ninan, 1958) based on Lycopodium lucidulum sensu Clark (1880), however, are actually from a distinct species, Lycopodium herterianum Kimmerle (Huperzia herteriana (Kumm.) Sen & Sen, L. sikkimense Herter 1909 non K. Muell. 1861), and not the nearctic Lycopodium lucidulum Michx. Love and Love (1958) first reported 2n = 264 for Lycopodium lucidulum from Quebec, but without an accompanying photograph, a drawing, locality data, or a voucher specimen citation. Later (1965), they reported chromosome counts from Mt. Washington, New Hampshire (without citation of voucher) of Lycopodium lucidulum and L. selago (which they made into subspecies of Huperzia selago) remarking . . it has been at last possible to make exact counts of the chromosomes of material of ssp. selago with appressed and patent leaves from Mt. Washington and also ssp. lucidula
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