Suffered a stroke on 16 December, affecting his speech and right-hand side of his body, but much recovered after copious bleeding, blistering, and other remedies; still confined to his library. Finished his catalogue of the Holkham manuscripts, although [Thomas William] Coke has postponed its publication. His botanical work ["Monandrian Plants"] almost completed. Shortly before his stroke he concluded his correspondence with New York respecting the discipline in the prisons there, closing his investigation, so for the first time in many years free from any literary engagements.

According to Linnaean sexual system, with headings "Monandria" and "Diandria".

[Probably from Roscoe's working papers for his "Monandrian plants of the order Scitamineae.." (1828)]

Sketch drawings in ink and pencil of reproductive organs of 'Canna', 'Maranta', 'Thalia', 'Myrosma', 'Alpinia', 'Zingiber', 'Amomum', 'Costus', 'Kaempferia', 'Curcuma', 'Colebrookia', and 'Gen. nov. au. Bot.'. Labels for 'Phrynium' and 'Philydrum' but no drawings.

[Probably from Roscoe's working papers for his "Monandrian plants of the order Scitamineae.." (1828)]

Observations: 'Hellenia' of Retzius and Willdenow appears to be 'Alpinia'; 'Renealmia' omitted, 'Renealmia exaltata' resembles 'Globba uviformis' and 'Renealmia' of Andrews Bot Rep are 'Alpinia'; 'Amomum' divided into 'Zingiber' and 'Amomum'; 'Amomum zedoaria' is a 'Curcuma'; 'Hornstedtia' of Willdenow to be considered; 'Alpinia comosa' of Willdenow is a 'Costus'; and 'Globba' to be further examined.

[Probably from Roscoe's working papers for his "Monandrian plants of the order Scitamineae.." (1828)]