HAWORTHIA 



9. margaritifera, Haw. (H. major, Duval. Aide mar- 

 giiritifera , Burin. ) . Lvs. turgid, spreading, merely acute, 

 botli faces witli scattered coarse white tubercles, which 

 often turn green on the upper surface. P.U. 57. Varies 

 into several named forms. 



DD. The h'S. less conspicuously white-tuierculate. 



10. rugdsa, Bak.(4MerH3d.5«, Salm-Dyck. H.Sddula 

 asperior). Lvs. long attenuate, spreading, plano-convex, 

 both faces with irregularly placed, rather coarse green- 

 ish tubercles. 



HECHTIA 



(15 



1022. Haworthia Rcinwardtii. 



11. suhuUta, Bak. (Aide subuldta, Salm-Dyek). Like 

 the preceding, but the scattered or rugosely confluent 

 tubercles very small, whitish. 



12. R4dula, Haw. {Aide Rddula, Jaeq. Apicra Rd- 

 diiZa, Willd.). Lvs. shorter, the white tubercles finer. 

 Cape. 



13. hjbrida, Haw. Lvs. short, more turgid, the upper 

 face somewhat rugose, the lower with scattered green 

 tubercles. Cape? 



cc. Shape of lvs. ovate to deltoid^ succulent^ not tuber- 

 culate, spreading, the rosette often somewhat 



14. tessellata, Haw. {,1?.).' ?(.s-.«(»()?<7, Schult. f.). Lvs. 

 acute or acuminate, setosely dentit-ulate, scabrous be- 

 neath, the smooth upper surface with pale lines anas- 

 tomosing in squares. 



15. reciirva, Haw. (Aide reciirva. Haw. Ap'icra re- 

 ciirva,Willd. ) . Lvs. entire, scabrous beneath, the smooth 

 upper surface longitudinally pale striate. B.M. 1353. 



10. oymbif6rmis,Haw.(JEr. concAra.Haw. Aldecymhi- 

 fSrmis. Haw. A. eymba^fdVia, Schrad. Ap'icra cymb(e~ 

 fdliii, Willd. ). Lvs. entire, smooth, rather obtuse, longi- 

 tudinally striate. B.M. 802. 



. cniiralihi prismatic, pellucid. 



i^lii. Ill innirat, . with deltoid, paU- 



17. miribilis. Haw. (J/.-, mifilnlis, Haw. Apicra 

 mirdbilis, Willd.). Lvs. liliate-denticulate on margin 

 and keel, sp.aringly triberculate beneath. B.M. 1354. 



18. asp^rula. Haw. (. 1 Kc (/spfrtda, Schult. f.). Lvs. 

 entire, finely scabrous. 



19. rettisa, Haw. (Aloe retiisa, Linn. Apicra retiisa, 

 Willd. Catei'dla retiisa. Medic). Lvs. entire, smooth. 

 B.M. 455. 



DD. The lvs. erecto-spreading, pointed, smooth. 



20. cuspidita, Haw. (A /A,. ,■„.•,,„;.;/,/, s.duilt. f.). Lvs. 

 stout, rather concave, phiik . im n', , i.rt, the setulosc 

 apex obscurely longitnii It: I :ifely striate and 

 sometimes truncate, but \ > -^n. 



21. tiirgida. Haw. {Alu, M,., -i -. >riailt. f.). Lvs. 

 small, spreading, very turgid, acute, entire, longitudi- 

 nally striate. 



22. reticulata, Haw.(-li^;e«(/cH/(!/(i, Haw. A.piimila, 

 Linn. A. herbdcea, DC. A. urachno'ides reticuldta. 

 Apicra reticuldta, Willd.). Lvs. as in the last, or 

 slightly ciliate on the angles, the striations anastomo- 

 sing. B.M. 1315. L.B.C. 14:1354. 



23. altilinea. Haw. iff. mucrotidta. ff. limpida and 

 H. ari.-ililta. Haw. .1/-V altUiin.i. S,-liuU. f.). Lvs. en- 

 tire, aristatcly iM.intfil, I..iii.'ituaiiu,ny striate. 



24. arachnoides, Haw.iJ/". .M.i.;n,.w.;,.„.Mill. 4p)cra 

 arachiundes, Willd. C.W. r,i/„ ,i mrlnnndi-a. Medic). 

 Lvs. more flattened-triquetrous, aristately pointed, the 

 angles ciliate-toothed. B.M. 756. 



BB. Margin and keel of lvs. horny-bordered. 

 25. albicans. Haw. 1/7. hrris. Haw. Aide IcevigcLta, 

 Schult. A.:ill>ii:n,s.\\:m-^ J. „,.,,,,,„.)/,-, Lara. Apicra 



dlbii 



entire, 

 IT. li's, white-bordered. 



WiLLIASI TRELEASE. 



HAWTHOKN. See Crata-gus. 



HAWTHORN, EAST INDIAN. Raphiolepis ovata. 



HAZABDIA (Barclay Hazard, Californian botanist). 

 Compdsitie. This includes a small Californian subshrub, 

 with silvery leaves and peculiar, nor pretty, beads of fls.. 



from Diplostephium mainly in habit, the paucity, re- 

 duced size, and different color of its rays. It also lacks 

 the tuft of hairs characteristic of the style-tips of Co- 

 rethrogyne. 



detfinsa, E. L. Greene. (Corethrdgyne detdnsa, Greene). 

 Lvs. of firm texture, 3-5 in. long, obovate-oblong, 

 coarsely serrate; uppersurface of older lvs. partly di- 

 vested of the white tomentjUm which covers all other 

 parts of the plant. f. Franceschi and W. M. 



HEAI-ALL. Bruntlla. 



HEART'S EASE. Old English name for Pansy, Viola 



HEARTSEED or BALLOON VINE. Cardiospermum. 



HEATH, HEATHER. The common Heather of Old 

 World literature is a hardy plant, Calhina vulgaris. 

 The greenhouse Heaths are from the Cape of Good 

 Hope and Europe, and belong to the genus Erica. For 

 St. Dabeoc's Heath, see Daba-cia. 



Oder Greenhouse Heating, 



HEBECLlNIUM. All referred to Eupatorium. 



HfiCHTIA (J. G. H. Hecht, who died in 1837). Bro- 

 melidcece. A genus of 15 species of IVlexican succulent 

 plants, one of which is perhaps cult, in a very few fan- 



of recurved spiny lvs.. which are purple above from the 

 middle to the tip and silvery beneatli. The genus is distin- 

 guished by having dioecious fls. The fls. have no decora- 

 tive value, being one-third of an inch across, white, in 



