Notes

T. Anderson founded in MS. his genus Dischistocalyx in herb. Kew on six of the species below; he diagnosed the genus from Ruellia entirely by the calyx, and therefore he described as Ruellia thunbergiiflora the eighth species below, as it has the calyx divided for 2/3 its. length, often irregularly or sometimes subequally 5-partite nearly to the base. Bentham published the genus as Distichocalyx (in Benth. & Hook. f. Gen. Pl. ii. 1080), making an error in the name and widening the calyx-character to include Ruellia thunbergiiflora. Dischistocalyx Lindau (in Engl. & Prantl, Pflanzenf. iv. 3B. 307) does not contain any one of the 7 species included by Bentham; it has equal calyx-segments, and is stated to have 10 or 12 seeds in each cell, but the two species which Lindau really possessed, viz. his Dischistocalyx laxiflorus, and D. confertiflorus, have only 2 ovules to each cell of the ovary, and are closely congeneric with Pseudostenosiphonium rhamnifolium, Lindau. The first six species of Distichocalyx below described are so intimately allied that the essential part of the description of all is included in the above generic description; it is remarkable that Bentham should have brought Ruellia thunbergiiflora here in the teeth of T. Anderson's generic characters (which make it a Ruellia); his instinct has been confirmed by the discovery that this species has the pollen of Distichocalyx —not of Ruellia .

Notes

T. Anderson founded in MS. his genus Dischistocalyx in herb. Kew on six of the species below; he diagnosed the genus from Ruellia entirely by the calyx, and therefore he described as Ruellia thunbergiiflora the eighth species below, as it has the calyx divided for 2/3 its. length, often irregularly or sometimes subequally 5-partite nearly to the base. Bentham published the genus as Distichocalyx (in Benth. & Hook. f. Gen. Pl. ii. 1080), making an error in the name and widening the calyx-character to include Ruellia thunbergiiflora. Dischistocalyx Lindau (in Engl. & Prantl, Pflanzenf. iv. 3B. 307) does not contain any one of the 7 species included by Bentham; it has equal calyx-segments, and is stated to have 10 or 12 seeds in each cell, but the two species which Lindau really possessed, viz. his Dischistocalyx laxiflorus, and D. confertiflorus, have only 2 ovules to each cell of the ovary, and are closely congeneric with Pseudostenosiphonium rhamnifolium, Lindau. The first six species of Distichocalyx below described are so intimately allied that the essential part of the description of all is included in the above generic description; it is remarkable that Bentham should have brought Ruellia thunbergiiflora here in the teeth of T. Anderson's generic characters (which make it a Ruellia); his instinct has been confirmed by the discovery that this species has the pollen of Distichocalyx —not of Ruellia .

Notes

T. Anderson founded in MS. his genus Dischistocalyx in herb. Kew on six of the species below; he diagnosed the genus from Ruellia entirely by the calyx, and therefore he described as Ruellia thunbergiiflora the eighth species below, as it has the calyx divided for 2/3 its. length, often irregularly or sometimes subequally 5-partite nearly to the base. Bentham published the genus as Distichocalyx (in Benth. & Hook. f. Gen. Pl. ii. 1080), making an error in the name and widening the calyx-character to include Ruellia thunbergiiflora. Dischistocalyx Lindau (in Engl. & Prantl, Pflanzenf. iv. 3B. 307) does not contain any one of the 7 species included by Bentham; it has equal calyx-segments, and is stated to have 10 or 12 seeds in each cell, but the two species which Lindau really possessed, viz. his Dischistocalyx laxiflorus, and D. confertiflorus, have only 2 ovules to each cell of the ovary, and are closely congeneric with Pseudostenosiphonium rhamnifolium, Lindau. The first six species of Distichocalyx below described are so intimately allied that the essential part of the description of all is included in the above generic description; it is remarkable that Bentham should have brought Ruellia thunbergiiflora here in the teeth of T. Anderson's generic characters (which make it a Ruellia); his instinct has been confirmed by the discovery that this species has the pollen of Distichocalyx —not of Ruellia .