SYSTEMATIC ARRANGEMENT OF THE SPECIES 
The following sections are proposed : — - 
A. Cuscuta Group. 
1. Eucuscuta. Styles nearly as long or longer and as thick or thicker than the filiform stigmata; capsule regularly circumscissile. 
2. Epistigma. Subulate stigmata nearly sessile; capsule opening transversely without a regular jointed separation. 
3. Cmstococca. Subulate styles longer than the short subulate stigmata; capsule - 'baccate. 
4. Pachystigma. Cylindric or oblong stigmata thicker than the filiform styles; capsule bursting transversely. 
B. Grammica Group. 
5: Eugrammica. Stigmata capitate; capsule more or less irregularly circumscissile. «-• 
6. Cltstogrammica. Stigmata capitate; capsule baccate. 
7. Lobostigma. Top of clavate styles lobed at the upper stigmatose surface. . .I,,..,;.. 
C. Monogyna Group. 
8. ^ Monogynella. Stigmata capitate or ovate, united or distinct. ; . p.■- 
9. Callianche. Stigmata conic, or almost subulate ; corolla large and deciduous. 
Sect. 1. EUCUSCUTA. 
Styles filiform, terminating in filiform stigmata of the same length or shorter, rarely longer, and of the same 
thickness as the styles, or thinner towards the end. Capsule regularly circumscissile by a joint, the line of separation 
being thickened. Usually all four seeds ripen ; they are triangular, with an obliquely truncate base, the bilnm 
forming a narrow perpendicular line. 
The flowers are mostly sessile and densely clustered, forming globose heads in the axils of single [461 (11)] 
bracts without bracts in the inflorescence. The central flowers open first; the exterior ones are occasion¬ 
ally abortive. G. Epithymum has sometimes short pedicels, and G. Babylonica is always pedicelled. The corolla 
always remains on top or around the capsule, never at its base. Epistamineal scales are always present, though 
sometimes very thin and small, and easily overlooked. 
The species of this group inhabit Europe, western and central Asia, and northern Africa td the Canary Islands. 
§ 1. Styles longer than ovary. * 
\/ 1. C. Babylonica, Aucher! mss.; Choisy ! Cusc. 174, t. 1, f. 1; DC. Prod. IX. 453. G. peduncularis, Kotschy! 
in sched.— Well characterized by its pedicelled flowers, truncate calyx and almost entire scales; approaching by its 
inflorescence to those other Asiatic species comprised in the section Epistigma. — Bagdad, Aucher-Eloy! 1420 and 
3183; on the Tigris, Noe ! in Kurdistan, Kotschy! 388, a. 
Var. elegans. G. elegans , Boiss. & Balansa! Diag. Or. II. 3, 129, from the alpine'regions of the Taurus, 
Balansa! 708 ; scarcely distinct from G. Babylonica except by the papillose prettily rose-colored flowers, and by the 
scales being a little more dentate and somewhat incurved. 
2. C. Epithymum, Murray in L. Syst. ed. 13. C. Europcea, [ 3, L. Sp. 180. G.minor, Bauh. Pin. 219; DQ.F1. 
fr. III. 644 ; DC. Prod. IX. 453. G. filiformis, ft, Lam. FI. fr. II. 307. — To this well known and common European 
species some authors have assigned all the different forms I am going to enumerate below, while others have separated 
several of them as distinct species; others, again, have united with it a number of other forms which I must consider 
distinct, especially such as I class with G. planiflora ; some have even mixed up with it the very distinct G. Europcea. 
It is certainly difficult to make, precise the limits of G. Epithymum and G. planiflora , and some forms which I 
class under var. Kotschyi of the former, and others which fall under var. approximata of the latter, apparently are more 
closely allied than the extremes of either species among themselves; while the common G. Epithymum, especially the 
form known as G. Trifolii, is as distinct as can be from Tenore’s original G. planiflora. I arrange the different fpaqns in 
the following order : — 
Var. a. vulgaris, the common form of central Europe extending west to Great Britain, north to 
Scandinavia, south to northern Spain (Bourgeau! 655), northern Italy ( G . acutiflora , Bota!), and also [462 (12)] 
Naples, to the Crimea, and reaching eastwardly far into Asia (Caucasus, Hohenacker! 409 and 1939, Altai, 
Ledebour! “ Orient” Herb. Tournefort!). Jt varies considerably, especially in the size and proportion of the calyx'and 
its lobes, and transition forms, uniting it with the other varieties, are not rare. I have paid some attention to the 
proportion of the stigma and style, but find no permanent character in them; the style proper is longer or shorter than 
the stigmatic portion ; and this part is cylindrical or subulate in specimens not otherwise distinguishable; the stigma 
is usually pale brown-red, or, when dry, dark red, rarely yellowish. — G. Trifolii, Babington! sometimes so fatal to 
whole clover fields in England, France, Switzerland, Germany, and Sweden, is a luxuriant form, overgrown at the 
expense of tfle succulent herb, which it destroys. , 
Var. ft . macr anther a. G . macr anthera , Heldr. & Sart.! in sched.; Boiss.! Diag. Or. II. 3, 126. G . Calliopes , 
Heldr. & Sart.!; Boiss.! ibid, 128. — Large flowers on very short pedicels; calyx skort, its ovate lobes scarcely covering 
half of the tube of the corolla; lacinise ovate, acute or obtusish; anthers oval, large, often longer than the filaments; 
7 8 9 10 M i s sou 
Botanic. 
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