RHAMNACE&. 03 



of Collctia (or Discaria). A very ramose shrub ; leaves very small 

 opposite linear-lanceolate entire ; stipules minute subpersistent 

 (finally fuscate) ; branches and twigs rigidly spinescent, articulate 

 at nodes ; flowers axillary cymose. {Mexico, Columbia, Bolivian) 



36 ? Retanilla Ad. Br. 9 — Flowers of Collctia, 4-5-merous ; tube 

 of campanulate or urceolate calyx generally far produced beyond 

 disk ; lobes ovate-acute, valvate. Petals 4, 5, inserted in hollows of 

 neck of calyx, small, cucullate. Disk covering base of calyx-tube 

 and produced upwards, tapering from bottom to top, unlimited. 

 Stamens 4, 5 ; anthers subpeltately affixed and opening in 2 valves 

 by subtransverse cleft. Germen sessile, or free, or slightly aduate 

 at base to receptacle and disk, pilose, 3-locular; style conical or 

 cylindrical columnar, 3-lobed at stigmatose apex. Fruit drupaceous 

 globular, girt at base with short cupule of receptacle ; exocarp fleshy 

 or spongy ; putamen hard, 3-locular. Seeds suberect ; testa crus- 

 taceous, raphe lateral perourrent ; micropyle finally lateral ; 

 albumen fleshy ; cotyledons of straight embryo flat subelliptical ; 

 radicle short inferior and other characters of Colletia. — Shrubs or 

 undershrubs 3 subaphyllous ramose ; branches virgate, 2-3-ckoto- 

 mously ramose terete spinescent ; leaves obsolete or opposite minute 

 very entire the smallest most caducous ; stipules minute scarious, 

 persistent ; flowers in short compound cymose ramules, shortly pedi- 

 cellate. {Peru, Chili.*) 



37. Talguenea Miers 5 . — Flowers nearly of Collctia; tube of 

 calyx membranous, lined with hairs (not a glandular disk), cylindri- 

 cally attenuated above, at base generally obconical and far produced 

 beyond disk, somewhat contracted at neck. Petals 5, inserted 

 between lobes of calyx neck, small cucullate. Stamens same in 

 number inserted with and opposite to petals ; filaments complanate 



1 Spec. 1. A. infesta Meissn. — A. Gray, PI. 4 Spec. 2, 3. Vent. Jard. Cels, t. 92; Choix de 

 Wright. St.— Colletia infesta Ad. Br. Rhamn. PI. t. 16 (Colletia). — Pom. Diet. Suppl. ii. 311, 

 59, n. 5. — Ceanothus infestus H. B. K. Nov. Gen. n. 1 (Colletia). — DC. Prodi: ii. 28 (Colletia: sect. 

 et Spec. vii. 61, t. 614. — Colnbrina infesta Schltl, Retanilla). — Lodd. Pot. Cab. t. 1820 (Collctia). 

 Lmnœa, xv. 468. — Hook. Pot. Mite. i. 157 ; iii. 173. — C. Gay, 



2 Rhamn. 57, t. 3. — Endl. Gen. n. 5734. — PL CM. ii. 25. — Phil. Linneea, xxviii. 679. 



B. H. Gen. 384, n. 31. — Retamilia Miers, Ann. Walp. Ann. vii. 606. 



Nat. Hist. Ber. 3, v. 483 ; Contrib. i. 285, t. 39 5 Trav. Chili, ii. 529 ; Ann. Nat. Hist. ser. 3, 



DE. — Uolintea Commers. MSS. not of others. v. 6 ; Contrib. i. 296, t. 41. — Endl. Gen. n. 5735. 



3 Habit of Ephedra. — B. H. Gen. 385, n. 33. 



