HATIORA 



HAWORTHIA 



1433 



arise the fl. and succeeding branches: fls. terminal; 

 ovary globular, naked or nearly so; sepals usually in 2 

 rows, the outer ones broader a.nd short, the inner ones 

 larger and more petal-like; petals distinct, narrow 

 toward the base; stamens distinct, erect, borne on the 

 disk; stigmas 5, erect, white. Closely related to Rhip- 

 salis, with which as Hariota it is often united, as it was 

 in the Cyclo. of Amer. Hprt. Some 6 or 7 species of 

 Hariota have been described, but most ' of these are 

 true species of Rhipsalis; 2 were recognized by K. 

 Schumann. The following is in cult. Hariota, DC. 

 (1834) is a homonym of Hariota, Adans. (1763), and 

 hence the name Hatiora has been substituted. 



salicornioides, Brit. & Rose (Hariota salicornioides, 

 DC. Rhipsalis salicornioides, Haw.). Plant upright, 

 reaching a height of 18 in., richly branched: areoles 

 hardly setulose or lanate: sts. cereiform, with cylindric 

 or oblong-elliptic joints; mature or fruiting branches 

 with verticillate, club- or flask-shaped joints, with 

 slender base, all apparently, as well as the fls. and fr., 

 growing from the tops of joints : fls. yellow, funnelf orm, 

 3^in. long: berry small, whitish. Brazil. B.M. 2461. 



J. N. ROSE. 



HAW, or HAWTHORN: Cratxgus. BLACK HAW: Viburnum 

 prunifolium. 



HAWKWEED : Hieracium. Various species of Crepis are known 

 as HAWKSBEAKD. 



HAWORTHIA (A. H. Haworth, an English botanist 

 of the beginning of the last century, who wrote much 

 and well on succulents). Lilidcese, tribe Aloineae. 

 Acaulescent or shortly caulescent small succulents. 



Leaves usually small, crowded on the st. or in mostly 

 somewhat elongated rosettes: fls. white, green or rosy- 

 striped, tubular with somewhat irregular recurving 

 limb and included style and stamens; segms. of perianth 

 6, oblong, nearly equal ; stamens 6, shorter than perianth ; 

 ovary sessile, 3-angled : fr. a loculicidally 3-valved caps., 

 bearing many compressed angled seeds. S. Afr. Mono- 

 graph by Berger in Engler, Das Pflanzenreich, hft. 

 33, 1908. Species 60, occurring in S. Afr. They are 

 interesting condensed or cespitose plants with thick and 

 succulent keeled often tuberculate and sometimes 

 toothed Ivs., and fls. in simple or panicled racemes. 



Cultivation, propagation and decorative uses as for 

 Aloe, under which, with Apicra and Gasteria, the 

 species were formerly placed. See Aloe and Succulents. 



A. Foliage crowded on an elongated st. (aspect of Apicra). 

 B. Lvs. never coarsely white-dotted. 



c. The Ivs. S-ranked, concave. 



1. viscSsa, Haw. (Aloe viscbsa, Linn. A. triangularis, 

 Lam. Apicra viscosa, Willd.). St. with Ivs. \% x 4-8 

 in., occasionally forked, clustered: Ivs. dull green, 

 Y<2, x 1 in., appressed with spreading tips, minutely 

 scabrous: infl. 1 ft. high, slender and curving, simple; 

 fls. green-lined. Cape. DC., PI. Gr. 16. B.M. 814. 

 Salm, Aloe 3, f. 3. The type, with straight ranks of 

 Ivs., varies into a form with larger less-crowded Ivs., 



var. indurata (H. indurata, Haw., Aloe indurata, R. & 

 S., A. viscosa indurata, Salm), Salm, Aloe 3, f. 36; a 

 small form with more spreading Ivs. in somewhat spiral 

 ranks, var. pseudotortuSsa, Baker (H. pseudotortuosa, 

 Haw., Aloe pseudotortuosa, Salm, A. subtortuosa, R. & 

 S., Apicra tortuosa, Willd.), Salm, Aloe 3, f. 5; a dwarf 

 form with straight-ranked, longer, more spreading, 

 nearly smooth Ivs., var. concinna, Baker (H. concinna, 

 Haw., Aloe concinna, R. & S., A. viscosa major, Salm), 

 Salm, Aloe 3, f. 4. Berger 24; and a taller form with 

 more or less spiral ranks of outcurving Ivs. 2 in. long, 

 var. torquata, Baker (H. torquata, Haw., Aloe torquata, 

 Salm), Salm, Aloe 3, f. 6. 



2. tortuSsa, Haw. (Aloe tortuosa, Haw.). St. 4-5 in., 

 more or less clustered: Ivs. dull green, ^xlj^ in., 

 ascending in 3 irregularly oblique crowded ranks, 

 somewhat rough on the back: infl. about 1 ft. high, 

 slender, occasionally forked; fls. rosy-lined. Cape. 

 Salm, Aloe 4, f. 2. B.M. 1337. Berger 25. Varies in 

 a form with fleshier Ivs., 2 in. long, rough on both 

 faces, var. pseudorigida, Berger (H. subrigida, Baker, 

 Aloe pseudorigida, Salm, A. subrigida, R. & S., Apicra 

 pseudorigida, Haw., Apicra rigida, Willd.), Salm, 



1787. Haworthia Reinwardtii. 



Aloe 4, f. 1. Jacq. Fragm. 108; a still larger, greener, 

 rougher, and more succulent form, var. major, Berger 

 (A. pseudorigida major, Salm), Salm, Aloe 4, f. 2/3; 

 and a smaller form with the more spirally arranged Ivs. 

 smooth above, var. tortella, Baker (H. tortella, Haw.). 



cc. The Ivs. more or less irregularly 5-ranked, spreading. 



3. hybrida, Haw. (Aloe hybrida, Salm). St. with Ivs. 

 2^x4-5 in-j more or less cespitose: Ivs. dull green, 

 ^xlj^ in., plump, wrinkled above and roughened: 

 infl. 2 ft. high, branched; fls. brown or rosy lined. 

 Cape (?). Salm, Aloe 4, f. 4. Possibly a hybrid 

 between the preceding and following species. 



4. rigida, Haw. (H. expdnsa major, Haw. Aloe 

 rigida, DC. A. cylindrica rigida, Lam. Apicra expdnsa, 

 Willd.). St. with Ivs. 4 x 3-5 in., more or less cespitose: 

 Ivs. green or browning or rosy-margined, V<r-% x 2-2 J^ 

 in., concave, wrinkled beneath: infl. 2 ft. high, more or 

 less branched; fls. striped with brownish green. Cape. 

 Salm, Aloe 4, f . 3. DC., PI. Gr. 62. Berger 26. L.B.C. 

 15 :1430. Varies into a smaller form with slightly glossy, 

 smoother, very spreading Ivs., var. expansa, Baker (H. 



