of his orations. After his death, texts of his speeches survived in Athens (possibly forming part of the library of Cicero's friend, Atticus, though their fate is otherwise unknown), and in the Library of Alexandria. The Alexandrian texts were incorporated into the body of classical Greek literature that was preserved, catalogued and studied by the scholars of the Hellenistic period. From then until the fourth century AD, copies of Demosthenes' orations multiplied and they were in a relatively good position to survive the tense period from the sixth until the ninth century AD. In the end, sixty-one orations attributed to Demosthenes survived till the present day (some however are pseudonymous). Friedrich Blass, a German classical scholar, believes that nine more speeches were recorded by the orator, but they are not extant. Modern editions of these speeches are based on four manuscripts of the tenth and eleventh centuries AD. Some of the speeches that comprise the "Demosthenic corpus" are known to have been written by other authors, though scholars differ over which speeches these are. Irrespective of their status, the speeches attributed to Demosthenes are often grouped in three genres first defined by Aristotle: Symbouleutic or political, considering the expediency of future actions—sixteen such speeches are included in the Demosthenic corpus; Dicanic or judicial, assessing the justice of past actions—only about ten of these are cases in which Demosthenes was personally involved, the rest were written for other speakers; Epideictic or sophistic display, attributing praise or blame, often delivered at public ceremonies—only two speeches have been included in the Demosthenic corpus, one a funeral speech that has been dismissed as a "rather poor" example of his work, and the other probably spurious. In addition to the speeches, there are fifty-six prologues (openings of speeches). They were collected for the Library of Alexandria by Callimachus, who believed them genuine. Modern scholars are divided: some reject them, while others, such as Blass, believe they are authentic. Finally, six letters also survive under Demosthenes' name and their authorship too is hotly debated. Later honours The Demosthenian Literary Society, founded in 1803 at the University of Georgia, was named in honor of Demosthenes. In 1936, an American botanist Albert Charles Smith named a genus of shrubs in the family Ericaceae, which were native to south America, as Demosthenesia in honour of Demosthenes. See also Pseudo-Demosthenes Notes a. According to Edward Cohen, professor of Classics at