A Grammatical Dictionary of Botanical Latin

Exclamation mark, exclamation point (!): see ‘vidi’ (note);

a) seen by the Author [vidi, I have seen (it)].

b) “after a citation of a specimen it means that this has been examined by the author citing it”

c) “after a citation of literature, notably, by de Candolle, it means that he has examined an authentic specimen from the author whose work is cited” (Stearn).

- [Angstroemia squarrosa; moss] Diobelon squarrosum Hmp. in litt. Dicranum squarrosum Starcke in litt. ad Schrader! ut ex ejus schedulis in Hb. Reg. Berol. elucet Schrad. in Bot. Journ. V. p. 68. (C. Muell.), [=] Diobelons quarrosum Hampe in correspondence = Dicranum squarrosum Starcke in a letter to Schrader [! which I have seen] Schrader clarifies from his labels in the Royal Herbarium of Berlin.

- [Dicranum falcatum; moss] D. Sendtneri Flotow in schedulis (C. Muell.), [=] Dicranum Sendtneri Flotow on labels.