DEPARTMENT REPORTS 65 



Tluiya occidontalis filifolin Hoi-t. • Tliread-liko Aibor Vitae. 

 Near Tlu' IumI^c northeast of the Botanical LaV)Oi'atory. 

 *Tlniya occidentalis j^endnla Iloi't. AVeepinjj;- Arbor Vitte. 

 "Thuya occidentalis pyraniidalis Hort. Pyramidal Arbor Vitie. 



West of liouse number 2; north of Abbot Hall; southeast of house 

 nnmb(M' !). 

 *Thuya occidentalis Sibirica Hort. Siberian Arbor Vita^. 



A compact round-topped, dwarfed evergreen. Southwest and near 

 the Chemical Laboratory; south of Howard Terrace; southeast 

 of the President's house. 

 *Thuya occidentalis spiralis Hort. Spiral Arbor Vitte. 



In the hollow some distance south of Howard Terrace; northeast 

 of the Botanical Laboratory; some distance south of dwelling 

 house nund)er 10. 

 *Thuya occidentalis verva^neana Hort. 



Southeast of house number 9; some rods south of dwelling house 

 number 10. 

 *Thuya orientalis L. i Biota orientalis Eudl.) Oriental Arbor Vitae. 



West of house number 10. 

 *Tilia american L. Basswood. 



West of the Physical Laboratory near the steps approaching the 

 Botanic Garden; south of dwelling number 3. 

 *Tilia argentea Desf. Silvery Linden. 



^\'est of the Library. 

 *Tilia europa^a L. European Basswood. 

 In the east part of the Arboretum. 

 Tilia ])laty]diyllos Scop. 



In i-ow •14: of the Arboretum. 

 *Tsuga canadensis (L.) Carr. Hemlock. 



Northwest of the greenhouse, near the Botanic Garden; southeast 

 of the I'resident's house; south of Howard Terrace. 

 *Toxylon i)omiferum Kaf. (Madura aurantiaca Xutt.) Osage Orange. 

 As a hedge southwest of Wells' Hall; in the Arboretum. 

 Tulij) Tree. See Liriodendron. 

 *riiinis americana L. American Elm. 



West of the Farm House; north of Abbot Hall; along the road 

 north of M. A. C. 

 *Ulmu8 campestris L. English Elm. 

 East of Wells* Hall, 

 rinius montana With. Scotch Elm. ^^■yncll Elm. 

 East and a little south of the President's house. 

 *Ulmus pubesceus Walt. (P. fulva Michx.) Red Elm. Slippery Elm. 

 Near the brook southeast of Abbot llall; south of the greenhouse 

 on the river flats; in the hollow near the path between College 

 Hall and Bachelor's Hall. 

 *Ulmus racemosa Thomas. Kock Elm. 



Soutli of the east end of Howard Terrace; southeast of the Chemical 

 Laboratory. 

 Vaceinium. 



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