This section is from the book "The Botanical Magazine; Or, Flower-Garden Displayed", by William Curtis. Also available from Amazon: The Botanical Magazine; or, Flower-Garden Displayed, Volume I.
Sisyrinchium Irioides. Iris-Leaved Sisyrinchium.
Monogyna. Spatha diphylla. Petala 6 plana. Capsula tri-locularis, infera.
SISYRINCHIUM iridioides foliis ensiformibus; petalis oblongo-obcordatis, venosis; germinibus pyriformibus, subhirsutis.
SISYRINCHIUM Bermudiana. Lin. Syst. Vegetab. p. 820. var. 2. Spec. Pl. p. 1353.
BERMUDIANA iridis folio, radice fibrosa. Dill. Elth. 48. t. 41. f. 48.
SISYRINCHIUM Bermudiana foliis gladiolatis amplexicaulibus, pedunculis brevioribus. Miller's Dict. ed. 6. 4to.
On comparing the present plant with the Bermudiana graminea flore minore c[oe]ruleo of Dillenius, both of which I have growing, and now in pots before me, the difference appears so striking, that I am induced with him and Miller to consider them as distinct species; especially as, on a close examination, there appear characters sufficient to justify me in the opinion, which characters are not altered by culture.
It is a native of the Bermudian Islands, and flowers in the open border from May to the end of July; it is not uncommon to keep it in the greenhouse, for which, from its size etc. it is very well adapted; but it is not necessary to treat it tenderly, as it will bear a greater degree of cold than many plants usually considered as hardy.
It may be propagated most readily by seeds, or by parting its roots in the autumn; should be planted on a border with an eastern aspect; soil the same as for bulbs.