JOURNAL OF PROCEEDINGS. 269 



1864— -from the Society. Geol. & Polytechnic Society of W. Rid. of York- 

 shire : Proc, 1863-4, Leeds — from the Society. Royal Society of Sciences : 

 Nachrichten aus dem Jahre 1864, Gbttingen, 1865 — from the Society. I. Reg. 

 Istituto Veneto : Atti, T. IX., Ser. iii., Disp. 9. '63-4 — from the Institution. 

 Museum Francisco-Carolinian : Bericht. XXIV., Linz, 1864— from the In- 

 stitution. Wiirzburger Med. Zeitschrift, Band V., Heft 4-5; Band VI., 

 Heft 6, 1864— from the Society. K. K. Geol. lteichsanstalt : Jahrbuch, Band 

 XIV., No. 4, Wien, 1864— from the Institution. Societa di Acclimazione : 

 Atti, T. IV., 3-6, Palermo, 1864— from the Society. Soce'te Imp. zool. 

 d'Acclimatation ; 2e. Se'rie, T. II., No. 2-3, Paris, 1865— from the Society. 

 Acad, of Nat. Sciences : Proc, No. 1. Jan. -March, 1865, Philad. — from the 

 Society. Essex Institute : Proc, Vol. VIII., 1860-1863, Salem— -from the 

 Institute. 



Dr. Engelmann presented the following botanical papers 

 for publication in the Transactions: "A Revision of the 

 Genus Callitriche, with plates," and "More about Pines," 

 being a continuation of his paper published on page 205 seq. 

 of this volume. 



He then made some remarks about the fruit and seed of different species 

 of Viburnum. Unfortunately botanists too frequently neglect to gather the 

 ripe fruit, and the herbaria that he consulted furnished but scanty material 

 for the interesting investigations he had instituted, and which he intend- 

 ed to prosecute. The fruit, he stated, was described as an oval drupe or 

 berry, red, dark blue, or black, with a juicy and edible pulp, and a crusta- 

 ceous stone containing the minute embryo in a fleshy albumen. He found 

 the berries of different sizes and generally more or less compressed, but, 

 on the whole, offering no useful diagnostic characters, as might be expect- 

 ed of such a pulpy fruit. The pulp contains, as is well known, saccharine 

 matter (especially in our common '"black haw," Viburnum prunifolium), or 

 it is more or less acidulous (e. g. in the " tree-cranberry,'' V. Opulus) ; but 

 he had found as a remarkable exception one species, the rare V. scabrellum, 

 specimens of which, collected in Mississippi by Prof. E. Hilgard, were 

 examined, with a pulp as oily as that of any Nyssa or of Olea itself. 



The most important diagnostic characters are found in the stone and 

 the albumen. The stone is either flattened or it is thick, even, or marked 

 with longitudinal grooves and ridges ; the albumen is described as fleshy, 

 but he would rather call it hornj', and it contains some oil; it is even and 

 uniform, principally in the flat-seeded species, or more or less folded, or 

 (as it is termed) ruminated, especially in the thick-seeded species. 



In the following table are enumerated all the species the fruits of which 

 he could examine. 



Viburnum. 

 A. Stone flattened, oval, or orbicular ; albumen even. 



a. Stone without distinct markings. 



1. V. pruni folium (St. Louis and Texas }, 10 mm. long, Si mm. wide. 



2. V. Lenturjo (Pennsylvania) - 10-1 1 " " 8 " " 



3. V. obovatum (Georgia) - - 6±-8 " " 4^-6 " " 



4. V. nudum (N. Hamp. & Mississippi), SV-6 " " 4^-5 " " 



5. V. Opulus (Germany, Illinois) - 7-8^" " 6-74 " " 



Var. edule (Wisconsin) - - 6^-7£ '* "7^-8 " " 



b. Stone with 3 more or less distinct grooves on flat or 



ventral, and 2 on convex or dorsal surface. 



6. V. pauciflorum (Rocky Mountains), 51 mm. Ions, 5 mm. wide. 



7. V. acerifolium (Wis., N. Hamp., Ga.) 6^-7 " " 5£-6i " 



8. V. pubescens (Wisconsin, Louisiana) 6-7 " " 5V " " 



9. V. denlatum (Wisconsin, unripe) 8 " " 4£ " " 



