Final answer:
The excerpts provided do not specify who Dr. Heidegger received a rose from, and they appear to be from different pieces of literature. Without specific evidence, it's not possible to answer definitively.
Step-by-step explanation:
The question refers to the character Dr. Heidegger in a work of fiction. However, based on the context provided, the question might be mixing elements from different stories, and the information given doesn't include clear evidence indicating from whom Dr. Heidegger got the rose. In classic literature, Dr. Heidegger is a character from Nathaniel Hawthorne's short story 'Dr. Heidegger's Experiment', which doesn't mention where he got a rose from. The excerpts provided seem to be from various pieces of literature that include references to roses, but none of these excerpts specify who Dr. Heidegger received a rose from. Therefore, without specific evidence from the text of 'Dr. Heidegger's Experiment', it's not possible to provide a definitive answer to the question.