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MISSOURI BOTANICAL GARDEN. 



which he found among them, two of which are of interest 

 here: A. svbfalcata and A. linearia. The first, with laterally 

 subfalcate dull gray-green leaves, elongate-lanceolate, and 

 somewhat narrowed above the base, is said to be comparable 

 in color only with another plant imported by the same col- 

 lector as A. Besseriana, which is considered to be typical 

 A. irmcrantha Karw. (evidently a slip for A. macroacantha 

 Zucc): Roezl's earlier plants named after Besserer in Bel- 

 gian gardens being now, as before, kept apart by Jacobi 

 as representing A. flavescens. Of the dull deep-green-leaved 

 A. linearia, Jacobi says that it might perhaps be considered 

 a climatic form of the other had not both been found to- 

 gether. Like all of the species thus far, these, which come close 

 to pugioniformis, were described from young plants only. 

 In his Zweiter Nachtrag (p. 75), Jacobi repeats his two later 

 species, correcting linearia to linearis, with the definite 

 information that both were collected at the "Cerro Colorado," 

 a prominent red cliff marking the landscape in sight of Te- 

 huacan. In his synonymy the earlier spelling of macrantha 

 is here changed to macracanthu, and Jacobi adds the sug- 

 gestion that A. suhfalcata may prove identical with his A. 

 flavoviridis* 



In 1871 a small plant that Saunders had bought in Belgium 

 a few years earlier as A. Besseriana hystrix (probably one of 

 Besserer's plants of 1868) flowered, and Sir Joseph Hookerf 

 figured and described it under Jacobi's name Besseriana. 

 This seems to be the first flowering record relating to any of 

 this group of Agaves. The plant was evidently a starveling, 



for A. Jlavovirens, which— Versuc^ 258-261. (1866)— Jacobi had applied 

 to a nearly acaulescent plant with (at flowering time) pale greenish-yeilow 

 spreading-recurved leaves and unusual flower structure, that bloomed in 

 a garden at Bellagio, Italy. Nothing seems to be known of this species 



though not comparable with any tiling that I have seen in fresh Agave 

 flowers, matches fairly well what is to be seen in flower-remnants on the 

 capsules of A. Jacquiniana or angustifoUa, and the affinities of A. flavo- 

 virens seem more likely to lie with this group of species than with the re- 

 lated but different macroacantha group. 



t Hooker, Curtis's Bot. Mag. III. 27. pi. 5940. (1871). 



