Assignment 3 (20 of95 points remaining) - Tree diversity - Due Fri, 28 Sep. One

Question

Assignment 3 (20 of95 points remaining) - Tree diversity - Due Fri, 28 Sep. One of the trees native to northern Illinois, which is found on campus, is commonly known as the Indian bean or catawba tree. (These common names are given to severalclosely related tree species.) Use axaidluble resources Ghttp/lieolorg/info trees) to respond to the fullowing (Please do nat copy and paste diectly from any sources) 1) Phytogeography. Describe the likely distribution of our native Indian bean/catawba tree. Indicate the source of your information (www illinoiswil info or another reliable source). 2a) Tasa nom y. Using mform ato n from #1, list the scientific name and the famiy in which this tre classified and indicate where you found this information. (Remember to use correct typograpby.) 2b) Fuly explain how the common name, Indian bean tree, is descriptive of the tree. 2c) Abo exphin how this common name is misleading. [Hint: are "beans" in the same or a different family than tas tree? Also see item #3 on the correct name of the type of seedpod] 3) Morphology. The seedpod that this tree produces is technicaly known as a "capsule." Define this erm using correct botanical language and indicate your source. [Hint: use your texibook's glossary or nd an online glossary of botanical tornms (Please do not copy and paste your response)J

Explanation / Answer

1) Catawba tree species or Indian beans are native to United States near the Ohio and Missisipian rivers, Canada, areas of North America, East Asia and Caribbean ( source- eol.org, nature.mdc.mo.gov)

2.a) Scientific name- Catalpa bignonioides, Family- Bignoniaceae( source-www.britannica.com)

2.b) Catawba trees have very large and beautiful leaves. They have orchid like beautiful , large and showy flowers. They have long bean like pods that come after the flowers.The fruits of these plants totally resemble the pods of bean tree. So, they are also known as Indian bean tree.

2.c) Although the common name of catawba tree is Indian bean tree but the name is misleading as Indian bean (Phaseolus vulgaris) belongs to family Fabaceae (Leguminoseae)which is different from the family of catawba tree that is bignoniaceae. Also pods of Indian bean tree is edible, but that of catawba is not edible.

3. A capsule is a membranous covering like structure which is made up of two carpels that contains seeds and dehisces at maturity.

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