' evolved from ^l?=nts hevinp p cruciate 8rrpnp;emenf of the leave. 

 In consequence of mj ignorance of the pmount of variability- 

 end the native localities (v.'hich ere important) of these ^-lents, 

 the folliyrnr list must, he accented as rrovisionrl. ^n it I hove 

 omitted ell reference to the vorlc of Sender in the ^'lors Ciapensis, 

 and thrt of Berber, as these authors have often ignored the orig- 

 inal descri rations of Haworth and replaced them b y the erroneously- 

 named descrirtions of Salm ^yck, so that the names as given in 

 those v'orks do no^" always belong, to the -^lants that Hev;orth inten- 

 ded should bear them. As Hawor-th's works are rare end very diffi- 

 cult to obtain, I have added to the names of the chief characters 

 taken direct from his descrirtions or from the original figure he 

 nuotes, and I have cuoted the figures that -^ think belong to each 

 st^ecies as I understand it. 



To save space the letter '-. is used for "-esembryanthemum in 

 th e s ynon-^rmy of ea c y' s p e c ' e s , 



A. Leaves distinctly arranged in two ranks. 

 1. ^lowers sessile or subsessile. ^ee also note under G-. 

 lonruW. 



1. G-. angustum N. S. Bp, Leaves 3-5 m. long and i-| in. 

 broad, half-cylindric , :^lattish above, convex beneath, of nearly 

 eoual thickness throughout, obtuse, ^lowers subsessile, 3-4 "^ 

 inches in di^^meter; petals broader than any other (except G. 

 prandiflorum) , and united for more than 4 in. at the base. 

 Haworth states that his srecies is recognised at first sight by 

 its semicylin'^ric leaves, 



M. angustum. Haw. Obs., n. 176 (l794), and ^'-isc. i\at. -. :.:4, 

 not 0'" o-*:her authors. • 



2, G. depressum ^~'.^S. -or. Leaves 2-ranked, pressed to the 

 piround, 2-^. in. long, f-'i in. broad, narrowly tongue-shaped, ob- 

 tuse, with the sve-x variously incurved, ^lowers subsessile or 

 sessile, ^-32 in diameter. Ga-osule depressed. 



M. denressum. Haw. I'isn.'I-^t. -n/:^?^, (l.-Oo), ^ot. l^-^-. t. 

 1^66, not of Salm Dyck. 



1'. rufescens Hav;. Synon. p. 221 (l81"), and -^urrl, n, 89. 



Under this sriecies, I think, should also be Placed K. 

 frp grans. Salm ^yck, Obs. 3ot. p. 8 (1820 ), and i''J«s. 8, f. 2; 

 Link and Otto, Ic . Pi. 3el . p. 93, t. 43, which has sessile flow- 

 ers 3 in. or more in diameter, that are very fragrant. 



3., G. p-randiflorum., I^. 3. ^r.^ Loaves 2-ranked, pressed to 

 the p-round, about 3-1 in. long and l4 in. broad, very thick, ton- 

 ^nie-shai^ed, with s.' large pustule at the base on the unper side. 

 Slower usuall7r sessile, 3-4 in. in diameter, somev/hat inodorous; 

 pet'^ls in two series, 3-4 lines broad, obtuse. Capsule somev/ha-t 

 conical . 



r. r-ranSiflorum, Hpv. , inthil. ^-ae^. v. G8, p. 327 (l826); 

 Salm Oyck, Mes.SS, f.3. 



4, G. linguifonne, I^, ^S. --'x. Leaves 2-ranked, pressed to 

 the p-round, 3-4 in. lon^, l^-li in. brord, straight, tongue- 

 shaped, of'ten vrith a sli"-h.t notch on the up'-er edge, and a 



