24 J« M. Macfarlane. — Sarraceniaceae. 



important characters in common with the Papaveraceae and Nymphaeaceac, but the 

 writer inclines to look for even closer natural affinity with the Cistiflorae, a view that 

 has been already reached by Warming. 



Uses (Nutzen). The Sarraceniaceae yield no product of special economic im- 

 portance. The extract of the rhizome of 8, purpurea was once in repute as an anti- 

 dote in smallpox, but seems to have no medicinal value. An alcoholic extract from 

 the rhizome of S. flava is at times used in the Southern States as a stomachic and 

 tonic, but the plant constituent of the preparation is of doubtful value. As greenhouse 

 plants all of the species have attracted much attention, and large exportations have 

 been made from America to European growers. All of the species succeed readily 

 under cultivation, if grown in a greenhouse near to the glass, with eastern or south- 

 eastern exposure, in a fine sandy «muck or mud, and with the tips of their roots in 

 constant contact with water. 



Systema familiae. 



A. Ascidia suberecta ore sursum verso, bilamellae (alae) ven- 

 trales ascidii distinctae. Petala 0. Apex styli truncatus . . 1 . Heliamphora Benth. 



B. Ascidia erecta spiraliter torta ore deorsum verso, bilamellae 

 ventrales ascidii in alam mediam conjunctae. Petala 5. Apex 



styli 5-radiatus 2. Darlingtom a Torr. 



C. Ascidia erecta, suberecta vel decumbentia ore sursum vel 

 oblique vel deorsum verso, bilamellae ventrales ascidii in 

 alam mediam conjunctae. Petala 5. Apex styli late expansus 

 umbraculiformis 3. Sarracenia L. 



i. Heliamphora Benth. 



Heliamphora*) Benth. in Trans. Linn. Soc. XVIII. ( 1 8 4-1) 429, in Proc. Linn. Soc. 

 I. (1840) 53; Schomburgk, Reisen Brit. Guiana II. (1848) 263, III. (1848) 1090; Benth." 

 et Hook. f. Gen. I. (1867) 48; DG. Prodr. XVII. (1873) 6; Wunschmann in Engl.-Prantl, 

 Pflzfam. III. 2. (1891) 251; Hook. f. in Bot. Magaz. CXVI. (1890) t. 7093; Im Thurn et 

 Oliver in Trans. Linn. Soc. New Ser. II. (1887) 263, 271; Im Thurn in Gard. Chron. 

 (1888) I. 298; Macfarlane in Ann. of Bot. III. (1889) 259, VII. (1893) 414; Krafft, 

 Gattung Heli. (189 8) 1; N. E. Brown in Trans. Linn. Soc. New Ser. VI. (1901) 5, 18; 

 Allard in Gard. Chron. 3 Ser. XXXVII. (1905) 194. 



Flores nutantes apetali. Sepala 6 — 4, patula, petaloidea. Stamina oo. Pistillum 

 tricarpellatum ; ovarium ovatum zh pubescens triloculare, Stylus simplex apice truncatus, 

 stigma parvum obscure trilobum. Capsula trilocularis dehiscens trivalvis. Semina late 

 alata suborbiculata, discus ovoideus ad obovatus, testa laxe reticulata. — Herbae uligi- 

 nosae Americae australis. Folia omnia ascidiformia suberecta, ascidia tubulosa usque 

 amphoriformia ore obliquo operculata, antice alata, alae distinctae divergentes vel fronte 

 zt inclinatae, supra in marginem peristomii prolongatae, operculum apice postico ascidii 

 situm, parvum, orbiculatum, intus glandulosum; ascidium intus superne zb pilis deflexis 

 vestitum, medio glabrum, basi pilis brevibus sparse obtectum. Scapus erectus, race- 

 mosus, bracteatus, 6 — 4-florus, pedicelli graciles, uniflori, alterni, in axillis bractearum 

 amplexicaulium. 



Genus monotypicum auctori inter Nepenthes et Sarracenia intermedium esse videtur. 



1. H. nutans Benth. 1. c. — Sarracenia nutans D. Dietr. Syn. pl. III. (18 43) 

 2 60. — Rhizoma cylindricum 4 — 10 cm longum X 2 — 6 mm latüm; folia omnia ascidi- 

 formia, juniora tubulosa, altiora amphoriformia, ore 10 — 30 cm X 3 — 8 cm; petiolus 

 cylindricus antice alis divergentibus basi amplexicaulibus instructus ; ascidium sensim in 



*) "I have derived the generic name from Elog , a marsh , and a/ucpoQevc a pitcher". 

 (Bentham 1. c). 



